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Official Rulings

These are the official requests that match the search parameters that were entered on the previous page. Clicking on a column heading will revise the manner in which these requests are sorted. Clicking on an official request number will bring up a new page with detailed information about that request.

Request Request Type Requesting Agency State Date of Request Topic Status Keywords
1(09)-6 Change  NCUTCD  XX  6/10/2016  Site Roadways Open to Public Travel    General| Introduction
1(09)-5 Interpretation  National Transportation Safety Board (NTSB)  XX    Applicability of Compliance Dates to Preferential Lane Signing    General| Introduction| Signs| Signs - Guide
1(09)-4 Change  NCUTCD  XX  6/26/2014  Consolidation and Reorganization of Introduction and Part 1    General| Introduction
1(09)-3 Change  NCUTCD  XX  6/26/2014  Chapter and Section Numbering System    General
1(09)-2 Change  NCUTCD  XX  6/23/2011  Definition of a Traffic Control Device    General| Introduction
1(09)-1 Interpretation  AASHTO, NCUTCD, and various others  XX  1/8/2010  Definition of Standard Statement    General
1-52 Change  U.S. Department of the Army  XX  4/20/2007  MUTCD Applicability to Military Bases    General| Introduction
1-51 Interpretation  Citizen  TX  5/21/2006  Placement and Application of Speed Limit Signs    General| Signs - Regulatory; Barricades; Gates
1-50 Experiment  City of Miami Beach and Florida DOT  FL  9/20/2005  Futura Font on Community Wayfinding Signs  Inactive  General| Signs - Guide
1-49 Change  NCUTCD  XX  1/20/2006  Definitions for Roundabouts    General| Roundabouts and Circular Intersections
1-48 Change  NCUTCD  XX  1/20/2006  Traffic Control Devices on Private Property – Strengthen Section 1A.07    General
1-47 Change  NCUTCD  XX  1/20/2006  Engineering Judgment and Engineering Studies for Decisions on Signs    General| Signs
1-46 Change  NCUTCD  XX  1/20/2006  Bikeway vs. Bike Trail (Terminology)    Bikes| General
1-45 Experiment  National Park Service  XX  11/15/2001  National Park Service Fonts and Arrows    Signs - General Info; Recreational/Cultural; Emergency Management
1-44 Interpretation  American Traffic Safety Services Association (ATSSA)  XX  4/1/2004  Applicability of MUTCD to Private Property Open to Public Travel    General| Introduction
1-42 Change  NCUTCD  XX  1/9/2004  Revised Definition of Intersection Applicable to Signalized Locations    Introduction| Traffic Control Signals
1-41 Interpretation  Kansas DOT  KS  3/11/2004  Conformance with MUTCD on Federal-Aid Projects    General| Introduction
1-40 Interpretation  City of Baton Rouge  LA  10/6/2003  Status of Reference Documents in the MUTCD    General
1-39 Experiment  Harris County Toll Authority  TX  11/2/2002  Purple Guide Signs on Toll Roads  Inactive  General| Signs - Guide| Toll Facilities
1-38 Experiment  U.S. Forest Service  XX  4/29/2002  Coral Incident Management Traffic Signs  Inactive  General| Signs - Warning; Object Markers| Temporary Traffic Control Zones
1-37 Interpretation  3M Company  MN  7/16/2001  Fluorescent Yellow-Green and Changeable Message Speed Limit Signs    General| Signs - Changeable Message
1-36 Interpretation  Citizen  NV  12/19/2000  Requirements for an Engineering Study    General
1-34 Interpretation  City of Providence  RI  6/22/2000  Community Wayfinding System – Color-Coded     Signs - Guide
1-33 Interpretation  City of Washington  DC  7/19/1999  Community Wayfinding Signs – Use of the Color Blue    General| Signs - Guide
1-32 Interpretation  Citizen  VA  4/27/1999  Numerical Value for Road Users' Cone of Vision (also see Official Ruling 1-43)    General
1-17 Interpretation  NCUTCD  XX  8/2/1996  Definition of Term "Functional Maintenance"    General
1-15 Experiment  New Jersey DOT  NJ  9/26/1995  Incident Management Signs – Fluorescent Pink  Inactive  General| Signs - Warning; Object Markers| Temporary Traffic Control Zones
1-14 Interpretation  New Jersey DOT  NJ  3/15/1995  Color Specifications for Coral Color    General
1-12 Change  FHWA Federal Lands Highways  XX  3/22/1991  Traffic Control Devices on Special Purpose Roads (Park and Recreational Roads)    General
1-11 Experiment  Various highway agencies  XX    Fluorescent Yellow-Green Color for Pedestrian and Bicycle Warning Signs  Inactive  Bikes| General| School Areas| Signs - Warning; Object Markers
1-10 Change  NCUTCD and AASHTO  XX  10/7/1989  Traffic Control Devices on Private Property    General
1-9 Change  City of Commerce City  CO  1/8/1988  Use of Mirrors at Intersections    General
1-8 Change  National Transportation Safety Board (NTSB)  XX  1/1/1987  Responsibility for Maintaining Traffic Control Devices    General
1-3 Interpretation  City of Kansas City  MO  3/24/1984  Placement of Neighborhood Watch Signs on the Backs of Stop Signs    Signs - Regulatory; Barricades; Gates
1-2 Interpretation  Michigan DOT  MI  9/3/1982  Definition of Term "Roadway"    General
2(09)-133 Change  NCUTCD  XX  1/6/2017  Section 2C.04, Size of Warning Signs    Signs| Signs - Warning; Object Markers
2(09)-132 Change  NCUTCD  XX  1/6/2017  In-Street Pedestrian Signs Gateway Installation    Pedestrians| Signs| Signs - Regulatory; Barricades; Gates
2(09)-131 Change  NCUTCD  XX  1/6/2017  Setback for Parking Gates    Signs| Signs - Regulatory; Barricades; Gates
2(09)-130 Change  NCUTCD  XX  1/6/2017  Turning Vehicles Stop For Pedestrians (R10-15a) Sign    Pedestrians| Signs| Signs - Regulatory; Barricades; Gates
2(09)-129 Interpretation  Missoula Urban Transportation District  MT  11/7/2016  Bus Stop Signs    Signs
2(09)-125 Experiment  California DOT  CA  4/29/2016  Yellow Alerts on Changeable Message Signs (denied)  Denied  Signs| Signs - Changeable Message
2(09)-123 Change  NCUTCD  XX  6/10/2016  Site Roadways Open to Public Travel    Signs| Signs - Guide| Signs - Regulatory; Barricades; Gates| Signs - Warning; Object Markers
2(09)-122 Change  NCUTCD  XX  6/10/2016  National Toll Interoperability Symbol    Signs| Signs - Guide| Signs - Regulatory; Barricades; Gates| Symbols| Toll Facilities
2(09)-121 Change  NCUTCD  XX  6/10/2016  Parking Signs    Signs| Signs - Regulatory; Barricades; Gates
2(09)-120 Change  NCUTCD  XX  1/8/2016  Selecting Type of Traffic Control for Unsignalized Intersections    Signs| Signs - Regulatory; Barricades; Gates
2(09)-119 Change  NCUTCD  XX  1/8/2016  Climbing, Truck and Passing Lanes    Pavement Markings| Signs| Signs - Guide| Signs - Regulatory; Barricades; Gates| Signs - Warning; Object Markers
2(09)-118 Experiment  City of Washington  DC  5/26/2016  Pedestrian Crossing Regulatory Sign   Active  Pedestrians| Signs| Signs - Regulatory; Barricades; Gates
2(09)-117 Experiment  California DOT  CA  3/8/2016  Diagonal Downward Yellow Arrow Lane-Use Control Signal Indications  Active  Active Traffic Management| Signals - Lane-Use; Ramp Control; Movable Bridge| Signs| Signs - Changeable Message
2(09)-116 Experiment  City of Columbus  OH  4/19/2016  Grid Style Parking Sign (denied)  Denied  Signs| Signs - Regulatory; Barricades; Gates| Symbols
2(09)-115 Experiment  City of St. Petersburg  FL  4/12/2016  Gateway Installation of In-Street Signs (R1-6)  Active  Pedestrians| Signs| Signs - Regulatory; Barricades; Gates
2(09)-114 Experiment  Louisiana DOTD  LA  6/23/2016  Cell Phone Use Prohibition Symbol (denied)  Denied  Signs| Signs - Regulatory; Barricades; Gates| Symbols
2(09)-113 Change  NCUTCD  XX  6/19/2015  Movement Prohibition Signs    Signs| Signs - Regulatory; Barricades; Gates
2(09)-111 Interpretation  FHWA  XX  5/28/2015  International Symbol of Accessibility    Pavement Markings| Signs| Symbols
2(09)-110 Experiment  Texas DOT  TX  9/30/2014  Graphical Route Information Sign (denied)  Denied  Active Traffic Management| Signs| Signs - Guide
2(09)-109 Experiment  Florida DOT  FL  1/16/2015  Sponsorship Messages on Changeable Message Signs (denied)  Denied  Signs| Signs - Changeable Message
2(09)-108 Experiment  Minnesota DOT   MN  1/5/2015  Rest Area Amenities Symbol Signs (denied)  Denied  Signs| Signs - Specific Service; General Service; Tourist-Oriented Direc| Symbols
2(09)-107 Experiment  Minnesota DOT   MN  7/3/2014  Gore Diversion Indicator  Active  Signs| Signs - Warning; Object Markers
2(09)-106 Change  NCUTCD  XX  6/28/2014  Change Weigh Station to Inspection Station    Signs| Signs - Guide| Signs - Regulatory; Barricades; Gates
2(09)-105 Change  NCUTCD  XX  6/28/2014  Retain Flexibility in the Use of Changeable Message Signs    Signs| Signs - Changeable Message
2(09)-104 Change  NCUTCD  XX  6/28/2014  Use of “ROAD” or “HIGHWAY” on Memorial and Dedication Sign Legends    Signs| Signs - General Info; Recreational/Cultural; Emergency Management
2(09)-103 Change  NCUTCD  XX  6/28/2014  Use of Recreational and Cultural Interest Area Symbols on Roadways Outside of Parks    Signs| Signs - General Info; Recreational/Cultural; Emergency Management| Symbols
2(09)-102 Change  NCUTCD  XX  6/28/2014  Use of Recreational and Cultural Interest Area Symbols on Tourist-Oriented Directional Signs    Signs| Signs - Specific Service; General Service; Tourist-Oriented Direc| Symbols
2(09)-101 Change  NCUTCD  XX  6/28/2014  Optional Use of the Exit Number Plaque on Specific Service Signs    Signs| Signs - Specific Service; General Service; Tourist-Oriented Direc
2(09)-100 Change  NCUTCD  XX  6/26/2014  Use of Pictographs on Guide Signs    Signs| Signs - Guide
2(09)-99 Change  NCUTCD  XX  6/26/2014  State Welcome Signs    Signs| Signs - General Info; Recreational/Cultural; Emergency Management
2(09)-98 Change  NCUTCD  XX  6/26/2014  Jurisdictional Boundary Signs    Signs| Signs - General Info; Recreational/Cultural; Emergency Management
2(09)-97 Change  NCUTCD  XX  6/26/2014  Displaying Street Names in Both Directions for Pedestrians    Pedestrians| Signs| Signs - Guide
2(09)-96 Change  NCUTCD  XX  6/26/2014  Flexibility in Route System Preference    Signs| Signs - Guide
2(09)-95 Change  NCUTCD  XX  6/28/2014  Intersection Conflict Warning Systems    Signs| Signs - Warning; Object Markers
2(09)-94 Change  NCUTCD  XX  6/26/2014  Traffic Signal Pedestrian and Bicycle Actuation Signs    Bikes| Pedestrians| Signs| Signs - Regulatory; Barricades; Gates
2(09)-93 Change  NCUTCD  XX  6/26/2014  Excessive Use of Signs    Signs
2(09)-92 Change  NCUTCD  XX  6/26/2014  Word Messages    Signs
2(09)-91 Change  NCUTCD  XX  6/26/2014  Design of Signs    Signs
2(09)-90 Change  NCUTCD  XX  6/26/2014  Combination Horizontal AlignmentAdvisory Speed Signs    Signs| Signs - Warning; Object Markers
2(09)-89 Change  NCUTCD  XX  6/28/2014  Light-Emitting Diode (LED) Sign Applications    Signs| Signs - Changeable Message
2(09)-88 Change  NCUTCD  XX  6/26/2014  Object Markers for Obstructions Adjacent to the Roadway    Signs| Signs - Warning; Object Markers
2(09)-87 Change  NCUTCD  XX  6/26/2014  Relocate an Option Sentence from a Standard Paragraph to an Option Paragraph    Pedestrians| Signs| Signs - Regulatory; Barricades; Gates
2(09)-86 Interpretation  Utah DOT  UT  5/12/2014  Yield Here To (Stop Here For) Pedestrians Signs (R1-5 Series)    Pedestrians| Signs| Signs - Regulatory; Barricades; Gates
2(09)-85 Experiment  Michigan DOT   MI  5/15/2014  Gateway Installation of In-Street Pedestrian Crossing (R1-6) Signs  Active  Pedestrians| Signs| Signs - Regulatory; Barricades; Gates
2(09)-83 Experiment  Texas DOT  TX  2/27/2014  Sponsorship Acknowledgment on Changeable Message Signs  Active  Signs| Signs - Changeable Message
2(09)-82 Change  NCUTCD  XX  1/10/2014  Sizes of R10-11 Series and R10-17a Signs    Signs| Signs - Regulatory; Barricades; Gates
2(09)-81 Change  NCUTCD  XX  1/10/2014  Electrical Vehicle Signs    Signs| Signs - Regulatory; Barricades; Gates
2(09)-80 Change  NCUTCD  XX  1/10/2014  Minimum Maintained Retroreflectivity Levels    Signs
2(09)-79 Interpretation  Vermont Agency of Transportation  VT  9/13/2013  Radar Speed Feedback Signs    Signs| Signs - Changeable Message | Signs - Regulatory; Barricades; Gates
2(09)-78 Interpretation  FHWA CO Division Office  CO  9/18/2013  Signing for a Priced Managed Lane without a Transponder Requirement    Preferential and Managed Lanes| Signs| Signs - Guide
2(09)-77 Change  NCUTCD  XX  6/28/2013  DO NOT ENTER and WRONG WAY Signs    Signs| Signs - Regulatory; Barricades; Gates
2(09)-76 Change  NCUTCD  XX  6/27/2013  Revisions to Horizontal Alignment Sign Selection Criteria    Signs| Signs - Warning; Object Markers
2(09)-75 Change  NCUTCD  XX  6/27/2013  In-Street and Overhead Pedestrian Signs    Pedestrians| Signs| Signs - Regulatory; Barricades; Gates
2(09)-74 Experiment  New York State DOT  NY  5/31/2013  Branded Attraction Specific Service Signing (denied)  Denied  Signs| Signs - Specific Service; General Service; Tourist-Oriented Direc
2(09)-73 Experiment  City of Temple Terrace  FL  3/28/2013  Combined Bicycle Golf Cart Warning Sign (denied)  Denied  Bikes| Signs| Signs - Warning; Object Markers| Symbols
2(09)-72 Experiment  Massachusetts DOT  MA  1/8/2013  Left Turn Yield on Flashing Yellow Arrow Sign  Active  Signs| Signs - Regulatory; Barricades; Gates| Symbols| Traffic Control Signals
2(09)-71 Change  NCUTCD  XX  1/11/2013  TOLL Auxiliary Sign Designation    Signs| Signs - Guide| Signs - Warning; Object Markers| Toll Facilities
2(09)-70 Change  NCUTCD  XX  1/11/2013  Sections 2B.11 and 2C.50    Pedestrians| Signs| Signs - Regulatory; Barricades; Gates
2(09)-69 Change  NCUTCD  XX  1/11/2013  Overhead Signs at Preferential Lanes    Preferential and Managed Lanes| Signs| Signs - Regulatory; Barricades; Gates
2(09)-68 Change  NCUTCD  XX  1/11/2013  Reversible Lane Control Signs    Signs| Signs - Regulatory; Barricades; Gates
2(09)-67 Change  NCUTCD  XX  1/11/2013  Section 2A.08    Signs
2(09)-66 Change  NCUTCD  XX  1/13/2013  Definition of Statutory Speed Limit    Signs| Signs - Regulatory; Barricades; Gates
2(09)-65 Change  NCUTCD  XX  1/11/2013  Approximate Center of the Lane    Signs
2(09)-62 Interpretation  California DOT  CA  10/29/2012  Use of Signal Ahead Signs for Ramp Metering    Signals - Lane-Use; Ramp Control; Movable Bridge| Signs| Signs - Warning; Object Markers
2(09)-61 Interpretation  Citizen  MO  11/2/2012  Mandatory Movement Lane Control Signs    Signs| Signs - Regulatory; Barricades; Gates
2(09)-59 Change  NCUTCD  XX  6/21/2012  Increase some of the advance placement distances in Table 2C-4 and revise the text in Section 2C.36    Signs| Signs - Warning; Object Markers
2(09)-58 Change  NCUTCD  XX  6/21/2012  Relocate two paragraphs from Section 2A.19 to Section 2A.21, and revise a standard statement to support    Signs
2(09)-57 Change  NCUTCD  XX  6/21/2012  Allow States to embed the word TOLL into the route shield instead of requiring a separate auxiliary sign    Signs| Signs - Guide| Toll Facilities
2(09)-56 Change  NCUTCD  XX  6/21/2012  Add a sign with a hurricane symbol to the Evacuation Route signs    Signs| Signs - General Info; Recreational/Cultural; Emergency Management| Symbols
2(09)-55 Change  NCUTCD  XX  6/21/2012  Revise standard statements to guidance    Signs| Signs - General Info; Recreational/Cultural; Emergency Management
2(09)-54 Change  NCUTCD  XX  6/21/2012  Revise the majority of Section 2N.05 from standard statements to guidance     Signs| Signs - General Info; Recreational/Cultural; Emergency Management
2(09)-53 Change  NCUTCD  XX  6/21/2012  Revise an option statement, delete a standard statement, and add the E5-1c sign to Figure 2E-28    Signs| Signs - Guide
2(09)-52 Change  NCUTCD  XX  6/21/2012  Reduce the minimum sizes of the arrows on Overhead Arrow-per-Lane signs    Signs| Signs - Guide
2(09)-51 Change  NCUTCD  XX  6/21/2012  Revisions related to option lane signing at freeway exit ramps    Signs| Signs - Guide
2(09)-50 Change  NCUTCD  XX  6/21/2012  Revise an option statement to guidance    Signs| Signs - Guide
2(09)-49 Change  NCUTCD  XX  6/21/2012  Revise standard statements to guidance and support, and delete a standard statement    Signs| Signs - Guide
2(09)-48 Change  NCUTCD  XX  6/21/2012  Revise a standard statement to guidance    Signs| Signs - Guide
2(09)-47 Change  NCUTCD  XX  6/21/2012  Delete a standard statement regarding the relationship between Specific Service signs and Tourist-Oriented Directional signs    Signs| Signs - Specific Service; General Service; Tourist-Oriented Direc
2(09)-46 Change  NCUTCD  XX  6/21/2012  Revise a standard statement to guidance    Signs| Signs - Specific Service; General Service; Tourist-Oriented Direc
2(09)-45 Change  NCUTCD  XX  6/21/2012  Allow six logo sign panels on a Specific Service trailblazer sign    Signs| Signs - Specific Service; General Service; Tourist-Oriented Direc
2(09)-44 Change  NCUTCD  XX  6/21/2012  Revise a standard statement to guidance    Signs| Signs - Specific Service; General Service; Tourist-Oriented Direc
2(09)-43 Interpretation  City of Dublin  OH  6/28/2012  Retroreflectivity Requirements for Traffic Signal Actuation Signs    Signs| Signs - Regulatory; Barricades; Gates
2(09)-42 Interpretation  The RBA Group, Inc.  NJ  4/2/2012  Design of Named Scenic Byway Signs    Signs| Signs - Guide
2(09)-41 Change  California DOT  CA  5/25/2012  Pictographs on Memorial Signs    Signs| Signs - General Info; Recreational/Cultural; Emergency Management
2(09)-40 Interpretation  Delaware DOT  DE  1/3/2012  R1-5 Sign with Schoolchildren Symbol    School Areas| Signs| Signs - Regulatory; Barricades; Gates| Symbols
2(09)-39 Interpretation  BikersPost Inc.  FL  1/17/2012  Motorcycle Symbol Warning Sign    Signs| Signs - Warning; Object Markers| Symbols
2(09)-38 Change  NCUTCD  XX  1/19/2012  Add a Freeway Size for W11 Series Large Animal Warning Signs    Signs| Signs - Warning; Object Markers
2(09)-37 Change  NCUTCD  XX  1/19/2012  Vertical Clearance of Preferential Lane Signs That Are Less than 72 Inches Wide and Are Post-Mounted on a Median Barrier    Preferential and Managed Lanes| Signs
2(09)-36 Change  NCUTCD  XX  1/19/2012  Editorial Revisions Throughout Chapter 2C    Signs| Signs - Warning; Object Markers
2(09)-35 Change  NCUTCD  XX  1/19/2012  Location and Spacing of Speed Limit Signs    Signs| Signs - Regulatory; Barricades; Gates
2(09)-34 Change  NCUTCD  XX  1/20/2012  Size of Regulatory Signs    Signs| Signs - Regulatory; Barricades; Gates
2(09)-33 Change  NCUTCD  XX  1/19/2012  Optional Colors for the Pay Station (R7-20) Sign    Signs| Signs - Regulatory; Barricades; Gates
2(09)-32 Change  NCUTCD  XX  1/19/2012  Removal of an Unnecessary Standard Statement regarding the Two-Direction Large Arrow Sign     Roundabouts and Circular Intersections| Signs| Signs - Warning; Object Markers
2(09)-31 Change  NCUTCD  XX  1/19/2012  Removal of NEW Plaque After Six Months    Signs| Signs - Warning; Object Markers
2(09)-30 Change  NCUTCD  XX  1/19/2012  New Figures Showing Typical Placement of Signs at Signalized Intersections     Signs| Traffic Control Signals
2(09)-28 Interpretation  BL Companies  CT  12/1/2011  Curve or Turn Sign for 30 mph Speed Limit    Signs| Signs - Warning; Object Markers
2(09)-27 Interpretation  Allstate Insurance Company  NC  11/18/2011  Motorcycle Look Warning Sign    Signs| Signs - Warning; Object Markers
2(09)-26 Change  NCUTCD  XX  6/23/2011  New Section on Guide Signs for a Split with Dedicated Lanes to Support Figure 2E-14    Signs| Signs - Guide
2(09)-25 Change  NCUTCD  XX  6/23/2011  Reorganization of Chapter 2E    Signs| Signs - Guide
2(09)-24 Change  NCUTCD  XX  6/23/2011  Review of Standard Statements in Chapter 2B    Signs
2(09)-23 Change  NCUTCD  XX  6/23/2011  Traffic Signal Photo Enforcement (Red Light) Sign    Signs| Signs - Regulatory; Barricades; Gates| Traffic Control Signals
2(09)-22 Change  NCUTCD  XX  6/23/2011  Size of Warning Signs on Ramps    Signs| Signs - Warning; Object Markers
2(09)-21 Change  NCUTCD  XX  6/23/2011  Size of Regulatory Signs on Ramps    Signs| Signs - Regulatory; Barricades; Gates
2(09)-20 Change  NCUTCD  XX  6/23/2011  Selection of Horizontal Alignment Traffic Control Signs    Signs| Signs - Warning; Object Markers
2(09)-19 Change  NCUTCD  XX  6/23/2011  Clarification of Use of Selective Exclusion Signs    Bikes| Pedestrians| Signs| Signs - Regulatory; Barricades; Gates
2(09)-18 Change  Jacobs Civil, Inc.  FL  1/19/2011  Revised Definition of Overhead Sign and New Definition of Over-Lane Sign    Signs
2(09)-17 Interpretation  FHWA MN Division Office  MN  9/2/2011  Determination of Speed Differential for Horizontal Alignment Sign Selection for Exit Ramps    Signs| Signs - Warning; Object Markers
2(09)-15 Experiment  Texas DOT for North Texas Tollway Authority  TX  3/1/2011  Low-Mounted DO NOT ENTER and WRONG WAY Signs  Active  Signs| Signs - Regulatory; Barricades; Gates
2(09)-14 Experiment  Minnesota DOT for Washington County  MN  4/4/2011  Vertical Chevrons for Vertical Curves  Active  Signs| Signs - Warning; Object Markers| Symbols
2(09)-13 Change  NCUTCD  XX  1/20/2011  Turn and Curve Warning Signs    Signs| Signs - Warning; Object Markers
2(09)-12 Change  NCUTCD  XX  1/20/2011  Speed Differential for Horizontal Alignment Sign Selection    Signs| Signs - Warning; Object Markers
2(09)-11 Change  NCUTCD  XX  1/20/2011  Spacing of Speed Limit Signs    Signs| Signs - Regulatory; Barricades; Gates
2(09)-10 Change  NCUTCD  XX  1/20/2011  Two-Way Traffic on a Three-Lane Road Signs    Signs| Signs - Warning; Object Markers
2(09)-9 Change  NCUTCD  XX  1/20/2011  THRU TRAFFIC MERGE LEFT (RIGHT) Sign    Signs| Signs - Warning; Object Markers
2(09)-8 Change  NCUTCD  XX  1/20/2011  Higher Fines Signs and Plaques    School Areas| Signs| Signs - Regulatory; Barricades; Gates
2(09)-7 Change  NCUTCD  XX  1/20/2011  Lane Ends Signs    Signs| Signs - Warning; Object Markers
2(09)-6 Change  Citizen  CA  10/5/2010  Recommended Placement for Municipal Boundary Signs    Signs| Signs - General Info; Recreational/Cultural; Emergency Management| Signs - Guide
2(09)-5 Interpretation  Utah DOT  UT  7/6/2010  Overhead Arrow-per-Lane Sign Requirements for Major Interchanges and Reconstructed Locations    Signs| Signs - Guide
2(09)-4 Experiment  Washington State DOT  WA  6/28/2010  Overhead Lane-Use Signs for Active Traffic Management  Inactive  Active Traffic Management| Signals - Lane-Use; Ramp Control; Movable Bridge| Signs| Signs - Changeable Message
2(09)-3 Interpretation  FHWA WY Division Office  WY  6/18/2010  Color of Legend on Electronic-Display Changeable Message Signs    Signs| Signs - Changeable Message | Signs - Regulatory; Barricades; Gates
2(09)-2 Interpretation  Wayne Township  NJ  3/1/2010  Determination of Speed Differential for Curve Warning Signs and Plaques    Signs| Signs - Warning; Object Markers
2(09)-1 Change  Citizen  OH  3/29/2010  Signing for Circumferential Highway    Signs| Signs - Guide
2-674 Change  NCUTCD  XX  6/20/2009  U-Turn Signal Sign    Signs| Signs - Regulatory; Barricades; Gates| Traffic Control Signals
2-673 Change  NCUTCD  XX  6/20/2009  Multi-Way Stop Control    Signs| Signs - Regulatory; Barricades; Gates| Warrants
2-672 Change  NCUTCD  XX  6/19/2009  No Snowmobiles Sign    Bikes| Signs| Signs - Regulatory; Barricades; Gates| Symbols
2-671 Change  NCUTCD  XX  6/20/2009  Watch for Stopped Traffic Sign    Signs| Signs - Warning; Object Markers
2-670 Interpretation  Henrico County  VA  9/25/2009  Meaning of Mandatory Left-Turn Sign with Respect to U-Turns    Signs| Signs - Regulatory; Barricades; Gates
2-669 Interpretation  Michigan DOT   MI  10/22/2009  National Scenic Byways Signing    Signs| Signs - Guide| Symbols
2-668 Experiment  City of Kingsport  TN  7/22/2009  Community Wayfinding Guide Signs  Active  Signs| Signs - Guide
2-667 Change  Senator David Vitter  TN  9/29/2009  State Name on Interstate Route Sign    Signs| Signs - Guide
2-666 Experiment  City of Nashville and Davidson County  TN  5/12/2009  Community Wayfinding Guide Signs  Active  Signs| Signs - Guide
2-665 Experiment  California DOT  CA  5/22/2009  Big Horn Sheep Symbol Warning Sign  Inactive  Signs| Signs - Warning; Object Markers| Symbols
2-664 Experiment  City of Washington  DC  3/25/2009  Non-Standard Ped Crosswalk Sign  Inactive  Beacons| Pedestrians| Signs| Signs - Regulatory; Barricades; Gates
2-663 Experiment  Minnesota DOT  MN  7/1/2009  Transit Travel Time Comparison Signs for Urban Partnership Agreement (UPA) Project  Inactive  Active Traffic Management| Preferential and Managed Lanes| Signs| Signs - Guide
2-662 Experiment  Maryland State Highway Administration  MD  6/17/2009  Sports Team Logos on Guide Signs  Inactive  Signs| Signs - Guide
2-661 Experiment  California DOT  CA  2/19/2009  Wi-Fi Symbol Sign  Inactive  Signs| Signs - Specific Service; General Service; Tourist-Oriented Direc| Symbols
2-660 Interpretation  Pierce County  WA  1/4/2009  Sign Kiosks for Residential Subdivisions    Signs| Signs - Guide
2-659 Experiment  City of New York  NY  11/21/2008  Truck Route Network Signing Program  Active  Signs| Signs - Guide| Signs - Regulatory; Barricades; Gates
2-658 Experiment  Washington State DOT  WA  11/7/2008  Ticket Aggressive Cars and Trucks Program Sign  Active  Signs| Signs - Regulatory; Barricades; Gates| Symbols
2-657 Change  Citizen  OR  10/31/2008  Disc Golf Symbol Recreational Sign    Signs| Signs - General Info; Recreational/Cultural; Emergency Management| Symbols
2-656 Experiment  Wisconsin DOT  WI  10/20/2008  Cooperative Intersection Collision Avoidance System – STOP Sign Assist  Active  Signs| Signs - Regulatory; Barricades; Gates| Signs - Warning; Object Markers
2-655 Experiment  California DOT  CA  5/22/2008  Bikes in Lane Symbol Warning Sign  Inactive  Bikes| Signs| Signs - Warning; Object Markers| Symbols
2-654 Experiment  City of Cincinnati  OH  9/22/2008  Wayfinding Guide Signs  Active  Signs| Signs - Guide
2-652 Experiment  Oregon DOT  OR  9/24/2008  Electric Vehicle Charging Station Symbol Sign  Inactive  Signs| Signs - Specific Service; General Service; Tourist-Oriented Direc| Symbols
2-651 Change  Citizen  IN  8/31/2008  Glider Symbol Recreational Sign    Signs| Signs - General Info; Recreational/Cultural; Emergency Management| Symbols
2-650 Experiment  City of Washington  DC  9/23/2008  Sports Team Logos on Guide Signs  Final Report Received  Signs| Signs - Guide| Symbols
2-649 Experiment  Ohio DOT  OH  8/11/2008  Modified Horizontal Alignment Warning Sign   Active  Signs| Signs - Warning; Object Markers| Symbols
2-648 Experiment  Ohio DOT  OH  8/12/2008  Motorcycle Symbol Warning Sign    Signs| Signs - Warning; Object Markers| Symbols
2-647 Experiment  Arizona DOT  AZ  5/19/2008  Roundabout Diagrammatic Guide Sign  Active  Roundabouts and Circular Intersections| Signs| Signs - Guide
2-646 Interpretation  FHWA WI Division Office  WI  7/17/2008  Use of Pictographs on Guide Signs    Signs| Signs - Guide
2-645 Experiment  Oregon DOT  OR  5/14/2008  Leave More Space When Changing Lanes Sign  Active  Signs| Signs - Regulatory; Barricades; Gates| Symbols
2-644 Experiment  Minnesota DOT  MN  5/22/2008  Cooperative Intersection Collision Avoidance System – STOP Sign Assist  Active  Signs| Signs - Regulatory; Barricades; Gates| Signs - Warning; Object Markers
2-643 Experiment  Alabama DOT  AL  5/14/2008  Motorcycle Symbol Warning Plaque  Inactive  Signs| Signs - Warning; Object Markers| Symbols
2-642 Change  Citizen  NY  2/28/2008  Multi-Way Stop Symbol Plaque    Signs| Signs - Regulatory; Barricades; Gates| Symbols
2-641 Experiment  Minnesota DOT  MN  12/17/2007  Fish-hook Arrows on Roundabout Lane-Use Signs  Inactive  Roundabouts and Circular Intersections| Signs| Signs - Regulatory; Barricades; Gates| Symbols
2-640 Experiment  Washoe County  NV  1/23/2008  Bicycle and Motor Vehicle Symbol Warning Sign with SHARE THE ROAD Plaque  Inactive  Bikes| Signs| Signs - Warning; Object Markers| Symbols
2-639 Interpretation  Citizen  MI  1/17/2008  Placement of Parking, Stopping, and Standing Signs    Signs| Signs - Regulatory; Barricades; Gates
2-638 Interpretation  MUTCD Consultant Services  MD  1/6/2008  Color of Light Emitting Diodes on Signs    Signs
2-637 Change  Hanover Engineering Associates, Inc.  PA  10/25/2007  Sign Informing Drivers of Delayed Green When Opposite Approach Has a Leading Left-Turn Phase    Signs| Signs - Regulatory; Barricades; Gates| Signs - Warning; Object Markers| Traffic Control Signals
2-636 Experiment  Kentucky Transportation Cabinet  KY  8/30/2007  Leave More Space When Changing Lanes Sign  Active  Signs| Signs - Regulatory; Barricades; Gates| Symbols
2-635 Interpretation  Citizen  XX  11/8/2007  Meaning of When Pedestrians Are Present    Pedestrians| Signs| Signs - Regulatory; Barricades; Gates| Traffic Control Signals
2-634 Change  Citizen  CA  10/5/2007  STOP Sign Installed Above Lane-Use or Turn Prohibition Sign on Same Support    Signs| Signs - Regulatory; Barricades; Gates
2-633 Change  Citizen  LA  9/30/2007  Limit of One Additional Sign on STOP Sign Post    Signs| Signs - Regulatory; Barricades; Gates
2-632 Interpretation  Citizen  FL  9/18/2007  Diagrammatic Guide Sign as Substitute for Regulatory Lane-Use Sign    Roundabouts and Circular Intersections| Signs| Signs - Guide| Signs - Regulatory; Barricades; Gates
2-631 Change  NCUTCD  XX  6/21/2007  RAMP METERED WHEN FLASHING Sign     Signs| Signs - Warning; Object Markers
2-630 Change  NCUTCD  XX  6/22/2007  WORK ZONE Plaque    Signs| Signs - Regulatory; Barricades; Gates| Temporary Traffic Control Zones
2-629 Change  NCUTCD  XX  6/22/2007  Parking Signs with Green and Red Circles    Signs| Signs - Regulatory; Barricades; Gates| Symbols
2-628 Change  NCUTCD  XX  6/22/2007  Parking Fee Signs    Signs| Signs - Regulatory; Barricades; Gates
2-627 Change  NCUTCD  XX  6/21/2007  Mounting Height and Lateral Offset of Signs    Signs
2-626 Change  NCUTCD  XX  6/21/2007  Roadway Flooding and Water Depth Gauge Signs    Signs| Signs - Warning; Object Markers
2-625 Change  NCUTCD  XX  6/21/2007  THRU TRAFFIC MERGE LEFT (RIGHT) Sign    Signs| Signs - Warning; Object Markers
2-624 Change  NCUTCD  XX  6/21/2007  FREEWAY ENDS and EXPRESSWAY ENDS Signs    Signs| Signs - Warning; Object Markers
2-623 Experiment  Wisconsin DOT  WI  6/18/2007  Dot with Arrow Lane-Use Markings for Roundabouts  Inactive  Roundabouts and Circular Intersections| Signs| Signs - Regulatory; Barricades; Gates| Symbols
2-622 Experiment  Maryland State Highway Administration  MD  1/30/2007  Tourist Area Corridor Signing (also see Official Ruling 2-593)    Signs| Signs - General Info; Recreational/Cultural; Emergency Management| Signs - Specific Service; General Service; Tourist-Oriented Direc
2-621 Interpretation  U.S. Navy Support Facility in Dalhgren, VA  VA  5/21/2007  FASTEN SEAT BELT Sign Located beneath a STOP Sign    Signs| Signs - Regulatory; Barricades; Gates
2-620 Experiment  Texas DOT  TX  5/21/2007  Wayfinding Guide Signs  Active  Signs| Signs - Guide
2-619 Interpretation  Clark County  NV  5/4/2007  Use of a Lane Ends (W4-2) Sign on a Parallel Acceleration Lane    Signs| Signs - Warning; Object Markers
2-618 Experiment  Ohio DOT  OH  4/9/2007  Leave Extra Space When Changing Lanes Sign  Inactive  Signs| Signs - Regulatory; Barricades; Gates| Symbols
2-617 Change  Member of NCUTCD  XX  3/20/2007  Add a New Criterion for Location of Signs    Signs
2-616 Experiment  Clackamas County  OR  2/20/2007  Fishhook Arrows on Roundabout Lane-Use Control Signs (also see Official Ruling 3-204)  Inactive  Roundabouts and Circular Intersections| Signs| Signs - Regulatory; Barricades; Gates
2-614 Interpretation  City of Corning  NY  12/27/2006  Use of In-Street Pedestrian Crossing Signs    Pedestrians| Signs| Signs - Regulatory; Barricades; Gates
2-613 Experiment  Wayne County  MI  1/4/2007  Emergency Vehicle Alert System for Signalized Intersections  Active  Signs| Signs - Warning; Object Markers| Traffic Control Signals
2-612 Interpretation  Citizen  MI  2/26/2007  Meaning of ROAD CLOSED TO THRU COMMERCIAL TRAFFIC Sign    Signs| Signs - Regulatory; Barricades; Gates
2-611 Change  NCUTCD  XX  1/18/2007  Signs on Back of STOP and YIELD Signs    Signs| Signs - Regulatory; Barricades; Gates
2-610 Change  NCUTCD  XX  1/18/2007  Use of Safe and Reasonably Safe    General
2-609 Change  NCUTCD  XX  1/18/2007  Two-Way Traffic on a Three-Lane Road Symbol Sign    Signs| Signs - Warning; Object Markers
2-608 Change  NCUTCD  XX  1/19/2007  Definition of Pace Speed and Application of 85th-Percentile Speed to Determination of Speed Limits    Signs| Signs - Regulatory; Barricades; Gates
2-607 Change  NCUTCD  XX  1/18/2007  Mounting Height of Do Not Enter and Wrong Way Signs at Freeway and Expressway Exit Ramps    Signs| Signs - Regulatory; Barricades; Gates
2-606 Change  NCUTCD  XX  1/19/2007  Horizontal Alignment Warning Signs and Advisory Speed Plaque    Signs| Signs - Warning; Object Markers
2-605 Interpretation  AD Systems  FL  9/12/2006  Real Time Photo and Message Alert System    Signs| Signs - Changeable Message
2-604 Experiment  Virginia DOT  VA  11/14/2006  Add Distances to Mainline Specific Service Signs  Final Report Received  Signs| Signs - Specific Service; General Service; Tourist-Oriented Direc
2-603 Interpretation  Town of Brookline  MA  10/30/2006  Letter Size and Design of Street Name Signs    Signs| Signs - Guide
2-602 Change  Citizen  LA  9/21/2006  Use of Recreational and Cultural Interest Area Symbols on Other Types of Signs    Signs| Signs - General Info; Recreational/Cultural; Emergency Management| Symbols
2-601 Experiment  Ada County  ID  9/11/2006  Combination Pedestrian and Bicycle Symbol  Inactive  Bikes| Pedestrians| Signs| Signs - Warning; Object Markers| Symbols
2-600 Change  NCUTCD  XX  6/30/2006  Sign Sizes for Multi-lane Arterials    Signs| Signs - Regulatory; Barricades; Gates| Signs - Warning; Object Markers
2-599 Interpretation  Kansas DOT  KS  7/24/2006  Use of Commemorative Signs on Multiple Routes    Signs| Signs - General Info; Recreational/Cultural; Emergency Management
2-598 Experiment  Illinois Tollway  IL  6/28/2006  Advance Signs for Open Road Tolling and Cash Lanes  Inactive  Signs| Signs - Guide| Toll Facilities
2-597 Experiment  Wisconsin DOT  WI  6/27/2006  Fishhook Arrows on Roundabout Lane-Use Control Signs (also see Official Ruling 3-195)  Inactive  Roundabouts and Circular Intersections| Signs| Signs - Regulatory; Barricades; Gates
2-596 Experiment  Vermont Agency of Transportation  VT  6/2/2006  Connecticut River Byway Wayfinding Guide Signing  Active  Signs| Signs - Guide
2-595 Experiment  Missouri DOT  MO  5/10/2006  New Symbol for Traffic Signal Photo Enforcement Sign  Inactive  Signs| Signs - Regulatory; Barricades; Gates| Symbols| Traffic Control Signals
2-594 Experiment  Idaho Transportation Department  ID  5/19/2006  Use of the RV Friendly Symbol on Tourist Oriented Directional Signs  Active  Signs| Signs - Specific Service; General Service; Tourist-Oriented Direc| Symbols
2-593 Experiment  Maryland State Highway Administration  MD  4/21/2006  Tourist Area Corridor Signing (also see Official Ruling 2-622)  Inactive  Signs| Signs - General Info; Recreational/Cultural; Emergency Management| Signs - Specific Service; General Service; Tourist-Oriented Direc
2-592 Experiment  Florida DOT  FL  5/24/2006  Miami Beach Wayfinding Guide Signs  Active  Signs| Signs - Guide
2-591 Experiment  Minnesota DOT  MN  3/24/2006  Internet Address on Work Zone Information Sign  Inactive  Signs| Temporary Traffic Control Zones
2-590 Experiment  Washington State DOT  WA  3/14/2006  Fishhook Arrows on Roundabout Lane-Use Control Signs (also see Official Ruling 3-189)  Inactive  Roundabouts and Circular Intersections| Signs| Signs - Regulatory; Barricades; Gates
2-589 Change  NCUTCD  XX  1/20/2006  Regulatory and Warning Signs at Roundabouts    Roundabouts and Circular Intersections| Signs| Signs - Regulatory; Barricades; Gates| Signs - Warning; Object Markers
2-588 Change  NCUTCD  XX  1/20/2006  Guide Signs at Roundabouts    Roundabouts and Circular Intersections| Signs| Signs - Guide
2-587 Change  NCUTCD  XX  1/20/2006  Add Text for Warning Signs that Are Only Shown in the Figures    Signs| Signs - Warning; Object Markers
2-586 Change  NCUTCD  XX  1/20/2006  Add Text for Regulatory Signs that Are Only Shown in the Figures    Signs| Signs - Regulatory; Barricades; Gates
2-585 Change  NCUTCD  XX  1/20/2006  Illumination of Overhead Signs    Signs
2-584 Change  NCUTCD  XX  1/20/2006  Sizes for Yield Here to Pedestrians (R1-5 and R1-5a) Signs    Signs| Signs - Regulatory; Barricades; Gates
2-583 Change  NCUTCD  XX  1/20/2006  Detectable Guidance for Pedestrians with Visual Impairments    Pedestrians| Signs| Signs - Regulatory; Barricades; Gates
2-582 Change  NCUTCD  XX  1/20/2006  Allow Alternate Legends for Higher Fines Signs without Assigning Designations for Them    Signs| Signs - Regulatory; Barricades; Gates
2-581 Change  NCUTCD  XX  1/20/2006  Add a DRAW BRIDGE (W3-6) Sign    Signs| Signs - Warning; Object Markers
2-580 Change  NCUTCD  XX  1/20/2006  Add "m" Suffix to Designations for Metric Versions of Signs    General| Signs
2-579 Change  NCUTCD  XX  1/20/2006  Color of Borders on Parking Prohibition Signs    Signs| Signs - Regulatory; Barricades; Gates
2-578 Change  NCUTCD  XX  1/20/2006  Alternative Messages for Cross Traffic Does Not Stop Plaque    Signs| Signs - Warning; Object Markers
2-577 Experiment  Montana DOT for City of Billings  MT  1/4/2006  Wayfinding Guide Signs  Active  Signs| Signs - Guide
2-576 Experiment  Florida DOT  FL  11/7/2005  New Symbol for College and Universities  Active  Signs| Signs - General Info; Recreational/Cultural; Emergency Management| Symbols
2-575 Change  Citizen  AZ  9/11/2005  Use of a Retroreflective Border on the Back of a Stop Sign    Signs| Signs - Regulatory; Barricades; Gates
2-574 Experiment  Virginia DOT  VA  10/23/2005  Wayfinding Guide Signs  Final Report Received  Signs| Signs - Guide
2-573 Experiment  North Carolina DOT  NC  7/20/2005  Use of Nine Logo Sign Panels on a Specific Service Sign  Inactive  Signs| Signs - Specific Service; General Service; Tourist-Oriented Direc
2-572 Experiment  City of Eau Claire  WI  8/31/2005  Roundabout Symbol for Guide Signs  Inactive  Roundabouts and Circular Intersections| Signs| Signs - Guide
2-571 Experiment  North Carolina DOT  NC  7/20/2005  Overflow Combination Logo Sign Panels for Specific Service Signs  Inactive  Signs| Signs - Specific Service; General Service; Tourist-Oriented Direc
2-570 Change  NCUTCD  XX  6/24/2005  Rectangular Shapes for Warning Signs    Signs| Signs - Warning; Object Markers
2-569 Interpretation  New York State DOT  NY  7/29/2005  Political Jurisdiction Logos    Signs| Signs - General Info; Recreational/Cultural; Emergency Management
2-568 Experiment  California DOT  CA  7/13/2005  Tsunami Symbol  Inactive  Signs| Signs - General Info; Recreational/Cultural; Emergency Management| Symbols
2-567 Experiment  Alaska DOT  AK  7/28/2005  Lane-Use Signs for Two Left-Turn Lanes Turning Towards Three Departure Lanes  Active  Signs| Signs - Regulatory; Barricades; Gates
2-566 Interpretation  Florida DOT  FL  4/14/2005  Combination Use of the W11-2 Pedestrian Sign with the R1-5 and R1-6 Pedestrian Signs    Signs| Signs - Regulatory; Barricades; Gates
2-565 Interpretation  FHWA AR Division Office  AR  7/7/2005  Use of Pictographs on Interstate Guide Signs    Signs| Signs - Guide| Symbols
2-564 Interpretation  City of Scottsdale  AZ  4/15/2005  Orientation of Airport Symbol    Signs| Signs - General Info; Recreational/Cultural; Emergency Management| Symbols
2-563 Experiment  Village of Hudson Falls Police Department  NY  2/15/2005  Use of Pedestrian Flags at Crosswalks  Inactive  Pedestrians
2-562 Experiment  New York State DOT  NY  3/8/2005  Fishhook Arrows on Roundabout Lane-Use Control Signs (also see Official Ruling 3-177)  Inactive  Roundabouts and Circular Intersections| Signs| Signs - Regulatory; Barricades; Gates
2-561 Change  Member of NCUTCD  XX  2/18/2005  Alternative Designs for Bike Signs and Metric Signs    Bikes| Signs| Temporary Traffic Control Zones
2-560 Change  NCUTCD  XX  1/7/2005  Smaller Sizes of Regulatory and Warning Signs for Alleys    Signs| Signs - Regulatory; Barricades; Gates| Signs - Warning; Object Markers
2-559 Change  NCUTCD  XX  1/7/2005  Replace Perception, Identification, Emotion, and Volition (PIEV) time with Perception-Response Time (PRT)    Signs| Signs - Warning; Object Markers
2-558 Interpretation  Citizen  OR  1/21/2005  Is a Move Over Sign an Approved Regulatory Sign?    Signs| Signs - Regulatory; Barricades; Gates
2-557 Experiment  Florida DOT  FL  12/14/2004  Directional Overhead Pedestrian Warning Display at an Unsignalized Crosswalk  Final Report Received  Pedestrian Signals| Pedestrians| Signs| Signs - Regulatory; Barricades; Gates| Symbols
2-556 Experiment  Colorado DOT  CO  12/2/2004  Symbol Sign for Heavy Weaving Movements  Inactive  Signs| Signs - Warning; Object Markers| Symbols
2-555 Change  NCUTCD  XX  6/25/2004  Right-of-Way at Intersections    Signs| Signs - Regulatory; Barricades; Gates
2-554 Interpretation  Citizen  NJ  7/10/2004  No Parking - Limited Area or Zone    Signs| Signs - Regulatory; Barricades; Gates
2-553 Experiment  City of Reno  NV  3/22/2004  Use of Pedestrian Flags at Crosswalks  Inactive  Pedestrians
2-552 Experiment  Virginia DOT  VA  4/22/2004  More Than Six Logo Sign Panels for a Specific Service Sign Category  Final Report Received  Signs| Signs - Specific Service; General Service; Tourist-Oriented Direc
2-551 Interpretation  New York State DOT  NY  4/27/2004  Display of Travel Times on Changeable Message Signs    Active Traffic Management| Signs| Signs - Changeable Message
2-550 Experiment  Florida DOT  FL  3/10/2004  Pedestrian Safety at Crosswalks Across Uncontrolled Approaches to Intersections  Active  Pavement Markings| Pedestrians| Signs| Signs - Regulatory; Barricades; Gates
2-549 Experiment  Florida DOT  FL  3/10/2004  In-Roadway Turning Traffic Must Yield to Pedestrians Sign  Active  Pedestrians| Signs| Signs - Regulatory; Barricades; Gates| Symbols
2-548 Experiment  Arizona DOT  AZ  2/26/2004  General Information Sign Symbol for Car Rental Facility  Final Report Received  Signs| Signs - General Info; Recreational/Cultural; Emergency Management| Symbols
2-547 Interpretation  Impact Recovery Systems  TX  2/10/2004  Use of the Terms Breakaway and Crashworthy Regarding In-Street Signs    Pedestrians| Signs| Signs - Regulatory; Barricades; Gates
2-546 Change  Citizen  VA  3/4/2004  Homeland Security Terror Threat Level Sign    Signs| Signs - General Info; Recreational/Cultural; Emergency Management
2-545 Interpretation  FHWA MO Division Office  MO  2/23/2004  Use of Folding Stop Signs during Traffic Signal Power Outages    Signs| Signs - Regulatory; Barricades; Gates| Traffic Control Signals
2-543 Experiment  Colorado DOT  CO  3/1/2004  Big Horn Sheep Symbol Warning Sign  Inactive  Signs| Signs - Warning; Object Markers| Symbols
2-541 Experiment  Texas DOT  TX  12/2/2003  Dual Logo Sign Panels for Specific Service Signs  Final Report Received  Signs| Signs - Specific Service; General Service; Tourist-Oriented Direc
2-540 Interpretation  Citizen  GA  1/2/2004  Use of Military Pictographs on Guide Signs    Signs| Signs - Guide| Symbols
2-539 Experiment  New York State DOT (for Rochester)  NY  8/13/2003  Color Coding of Geographical Area Destinations for Wayfinding Guide Signs  Active  Signs| Signs - Guide
2-538 Experiment  Missouri DOT  MO  7/18/2003  No Turn on Red Blank-Out Signs  Active  Signs| Signs - Regulatory; Barricades; Gates| Traffic Control Signals
2-537 Experiment  Ohio DOT  OH  6/26/2003  Incident Management Fender Bender Symbol Sign  Inactive  Signs| Signs - Regulatory; Barricades; Gates| Symbols
2-536 Experiment  Pennsylvania DOT  PA  5/28/2003  Driving Under the Influence (DUI) Signs with Photograph of Victim (denied)  Denied  Signs| Signs - Regulatory; Barricades; Gates| Symbols
2-535 Interpretation  FHWA Division Offices in several northern States  XX  7/1/2003  Design Details for Guide and Signs and Regulatory Signs at Border Crossings    Preferential and Managed Lanes| Signs| Signs - Guide| Signs - Regulatory; Barricades; Gates| Symbols
2-534 Interpretation  Citizen  NY  7/16/2003  Chevron Delineators on Guardrails for Horizontal Curves    Delineators| Signs| Signs - Warning; Object Markers
2-523 Experiment  Tennessee DOT  TN  9/26/2003  Wayfinding Guide Signs  Active  Signs| Signs - Guide
2-522 Interpretation  Applied Research Associates   TN  5/14/2003  Use of STOP and YIELD Signs at the Same Intersection    Signs| Signs - Regulatory; Barricades; Gates
2-521 Change  Citizen  MO  6/2/2003  Notice Strip Around Border of Select Regulatory Signs to Warn of Motorcycle and Pedestrian Traffic    Signs| Signs - Regulatory; Barricades; Gates
2-519 Experiment  Ohio DOT  OH  5/8/2003  Inside Merge Symbol on a Warning Sign  Active  Signs| Signs - Warning; Object Markers| Symbols
2-518 Experiment  Maryland State Highway Administration  MD  5/6/2003  Signage for Toll Sponsorship Events to Alleviate Traffic Congestion and Delay  Final Report Received  Signs| Signs - General Info; Recreational/Cultural; Emergency Management| Toll Facilities
2-517 Change  Citizen  NY  5/1/2003  New STOP Sign Design    Signs| Signs - Regulatory; Barricades; Gates
2-516 Interpretation  City of Bellevue  WA  2/21/2003  Application of Warning Signs for Horizontal Curves and Non-Vehicular Crossings    Signs| Signs - Warning; Object Markers
2-515 Experiment  Oregon DOT  OR  4/21/2003  Recreational Vehicle (RV) Symbol for Guide Signs  Final Report Received  Signs| Signs - Specific Service; General Service; Tourist-Oriented Direc| Symbols
2-514 Experiment  Texas DOT  TX  3/12/2003  Stopped Traffic Ahead Symbol on a Warning Sign (also see Official Ruling 2-513)  Active  Signs| Signs - Warning; Object Markers| Symbols
2-513 Experiment  Texas DOT  TX  3/10/2003  Red or Yellow Retroreflectorized Border Around a Speed Limit Sign (the correspondence calls this Official Ruling 2-514)  Inactive  Signs| Signs - Regulatory; Barricades; Gates
2-512 Change  Alger County  MI  1/29/2003  Special Color for Roadway Signs Intended to be Viewed by Snowmobile Users    Signs
2-511 Change  Citizen  IN  1/30/2003  New U.S. Route Sign Design    Signs| Signs - Guide
2-510 Experiment  New York State Thruway Authority  NY  12/31/2002  Reverse Color Chevron Alignment Sign   Active  Signs| Signs - Warning; Object Markers| Symbols
2-509 Interpretation  Bristol Metropolitan Planning Organization (MPO)  TN  11/1/2002  Intersection Warning Signs on Shared-Use Paths    Bikes| Signs| Signs - Warning; Object Markers
2-508 Experiment  Texas Transportation Institute (TTI)  TX  11/4/2002  Flashing Light Emitting Diodes (LEDs) Placed within the Border of a STOP Sign  Inactive  Signs| Signs - Regulatory; Barricades; Gates
2-507 Experiment  City of Redmond  WA  10/7/2002  In-Street Pedestrian Crossing Sign  Inactive  Pedestrians| Signs| Signs - Regulatory; Barricades; Gates
2-506 Experiment  California Office of Traffic Safety (for Garden Grove and Whittier)  CA  9/10/2002  Electronic Radar-Activated Speed Display Signs near School Zones  Inactive  School Areas| Signs| Signs - Regulatory; Barricades; Gates
2-505 Experiment  California Office of Traffic Safety (for Mendocino County)  CA  9/18/2002  Electronic Radar-Activated Speed Display Signs near School Zones  Inactive  School Areas| Signs| Signs - Regulatory; Barricades; Gates
2-504 Change  Citizen  IL  9/23/2002  Older Adult Warrant to Reduce Minimum Volume for Multiway Stops    Pedestrians| Signs| Signs - Regulatory; Barricades; Gates| Warrants
2-503 Change  Citizen  OH  8/26/2002  Letter to the Illinois DOT Suggesting a New Merge/Weave Symbol Warning Sign for Freeway Ramps    Signs| Signs - Warning; Object Markers| Symbols
2-502 Experiment  City of Cedar Rapids  IA  6/7/2002  In-Street Pedestrian Crossing Signs  Inactive  Pedestrians| Signs| Signs - Regulatory; Barricades; Gates
2-501 Experiment  Wisconsin DOT  WI  3/15/2002  Interstate Alternate Route Sign System for Incident Management  Inactive  Signs| Signs - Guide| Temporary Traffic Control Zones
2-500 Experiment  Connecticut DOT  CT  4/5/2002  Alternative Merge Symbol Sign for Departure Lanes from Signalized Intersections  Final Report Received  Signs| Signs - Warning; Object Markers| Symbols
2-498 Experiment  Kansas DOT  KS  5/16/2002  Advance Warning Sign for Roundabouts   Inactive  Roundabouts and Circular Intersections| Signs| Signs - Warning; Object Markers| Symbols
2-497 Experiment  New Mexico DOT  NM  3/20/2002  Limited Sight Distance Symbol Warning Sign for Vertical Curves (the correspondence calls this Official Ruling 2-494)  Inactive  Signs| Signs - Warning; Object Markers| Symbols
2-496 Experiment  Nye County  NV  9/11/2004  Driver's Alert Sign on the Back of a STOP Sign  Inactive  Signs| Signs - Regulatory; Barricades; Gates| Symbols
2-495 Interpretation  City of Joliet  IL  3/5/2002  Placement of Temporary Stop Signs During Power Outages at Traffic Control Signals    Signs| Signs - Regulatory; Barricades; Gates| Temporary Traffic Control Zones| Traffic Control Signals
2-494 Interpretation  Citizen  OR  3/22/2002  Setting Speed Limits (also see Official Ruling 2-497)    Signs| Signs - Regulatory; Barricades; Gates
2-493 Experiment  Minnesota DOT  MN  12/10/2001  Advance Warning Sign for Roundabouts   Inactive  Roundabouts and Circular Intersections| Signs| Signs - Warning; Object Markers| Symbols
2-492 Change  City of San Francisco  CA  2/13/2002  Transit and Bus Logo Design    Preferential and Managed Lanes| Signs| Signs - Regulatory; Barricades; Gates| Symbols
2-491 Interpretation  FHWA Central Federal Lands Highways  XX  3/21/2002  Use of a Recreational and Cultural Interest Area Symbol on a Warning Sign    Signs| Signs - General Info; Recreational/Cultural; Emergency Management| Signs - Warning; Object Markers| Symbols
2-487 Interpretation  Vermont Agency of Transportation  VT  11/5/2001  Level I Trauma Center Signs    Signs| Signs - General Info; Recreational/Cultural; Emergency Management
2-485 Change  Citizen  TX  8/22/2001  Numerical Lane Numbers    Signs| Signs - Guide
2-484 Experiment  Kitsap County  WA  7/31/2001  Limited Sight Distance Sign Including a New Symbol  Inactive  Signs| Signs - Warning; Object Markers| Symbols
2-483 Interpretation  Bristol Metropolitan Planning Organization (MPO)  TN  8/21/2001  ALL TRAFFIC MUST TURN RIGHT Sign    Signs| Signs - Regulatory; Barricades; Gates
2-482 Interpretation  Citizen  CA  7/22/2001  Does a Combination No Left Turn/No U-Turn Sign Comply with the 2000 MUTCD?    Signs| Signs - Regulatory; Barricades; Gates| Symbols
2-481 Experiment  Kentucky Transportation Cabinet  KY  4/27/2001  Dual Logo Sign Panels on Specific Service Signs  Inactive  Signs| Signs - Specific Service; General Service; Tourist-Oriented Direc
2-480 Experiment  City of Salinas  CA  4/10/2001  STOP Sign with Eight Flashing Light Emitting Diodes (LEDs) Around the Border  Inactive  Signs| Signs - Regulatory; Barricades; Gates
2-450 Interpretation  FHWA IA Division Office  IA  11/1/2000  Number of Supplemental Guide Sign Permitted on an Interchange Approach    Signs| Signs - Guide
2-449 Change  U.S. Congress  XX  11/28/1995  RIGHT TURN PERMITTED WITHOUT STOPPING Signs    Signs| Signs - Regulatory; Barricades; Gates
2-431 Experiment  Washington State DOT  WA  10/6/2000  Yield Here to Pedestrians Sign  Inactive  Pedestrians| Signs| Signs - Regulatory; Barricades; Gates| Symbols
2-430 Experiment  Ramsey County  MN  10/2/2000  In-Street Stop for Pedestrians in Crosswalk Sign  Inactive  Pedestrians| Signs| Signs - Regulatory; Barricades; Gates| Symbols
2-429 Experiment  Minnesota DOT for City of Little Falls  MN  9/14/2000  In-Street Stop for Pedestrians in Crosswalk Sign (also see Official Ruling 2-428)  Inactive  Pedestrians| Signs| Signs - Regulatory; Barricades; Gates| Symbols
2-428 Experiment  City of Owatonna  MN  11/15/2000  In-Street Stop for Pedestrians in Crosswalk Sign (the correspondence calls this Official Ruling 2-429)  Inactive  Pedestrians| Signs| Signs - Regulatory; Barricades; Gates| Symbols
2-409 Experiment  Maine DOT  ME  8/7/2000  Vehicle-Actuated Warning System for Stop-Controlled Intersections with Limited Sight Distance  Inactive  Signs| Signs - Warning; Object Markers| Symbols
2-407 Interpretation  North Carolina DOT  NC  6/8/2000  Use of Blank-out STOP Sign during Emergency Preemption of Traffic Control Signal    Signs| Signs - Regulatory; Barricades; Gates| Traffic Control Signals
2-406 Experiment  Kansas DOT  KS  6/5/2000  Use of Yellow Arrow on Purple Background for Incident Management Detour Signs  Inactive  Signs| Signs - Guide| Temporary Traffic Control Zones
3(09)-43 Change  NCUTCD  XX  1/6/2017  Channelization Devices Used for Emphasis of Pavement Marking Patterns    Pavement Markings
3(09)-41 Interpretation  Somerset County  NJ  10/14/2016  Markings between Double Lines    Colored Pavements| Pavement Markings
3(09)-40 Change  NCUTCD  XX  6/10/2016  Site Roadways Open to Public Travel    Pavement Markings
3(09)-39 Experiment  Oakland County  MI  2/5/2016  Dilemma Zone Markings (denied)  Denied  Pavement Markings| Traffic Control Signals
3(09)-38 Experiment  California DOT  CA  5/8/2015  Traffic Calming Markings  Active  Pavement Markings
3(09)-37 Experiment  Virginia DOT  VA  4/8/2015  Purple Pavement Markings for Express Lane Entrances  Active  Pavement Markings| Preferential and Managed Lanes
3(09)-36 Experiment  City of Washington  DC  8/26/2014  Red Colored Pavement for Transit-Only Lanes  Active  Colored Pavements| Pavement Markings| Preferential and Managed Lanes
3(09)-35 Change  NCUTCD  XX  6/28/2014  Definition of a Wide Line    Pavement Markings
3(09)-34 Change  NCUTCD  XX  6/28/2014  Colored Pavements    Colored Pavements| Pavement Markings
3(09)-33 Experiment  Wisconsin DOT  WI  6/23/2014  Pavement Markings Simulating Signing  Active  Pavement Markings| Signs - Regulatory; Barricades; Gates| Signs - Warning; Object Markers
3(09)-32 Experiment  Missouri DOT  MO  6/23/2014  Pavement Markings Simulating the R2-1 Regulatory Sign  Active  Pavement Markings| Signs - Regulatory; Barricades; Gates
3(09)-31 Experiment  Sedgwick County  KS  6/6/2014  Pavement Markings Simulating the R2-1 Regulatory Sign  Active  Pavement Markings| Signs - Regulatory; Barricades; Gates
3(09)-30 Experiment  Douglas County  KS  6/6/2014  Pavement Markings Simulating the W1-2 Warning Sign  Active  Pavement Markings| Signs - Warning; Object Markers
3(09)-29 Experiment  Missouri DOT  MO  4/3/2014  Rumble Stripe Markings in Place of Delineators  Active  Delineators| Pavement Markings
3(09)-28 Experiment  Kansas DOT  KS  5/8/2014  Pavement Markings Simulating Warning Signs  Active  Pavement Markings| Signs - Warning; Object Markers
3(09)-26 Experiment  Florida DOT  FL  12/11/2013  LOOK Pavement Markings for Pedestrian Crossings (denied)  Denied  Pavement Markings| Pedestrians| Symbols
3(09)-25 Experiment  Oklahoma DOT  OK  9/17/2013  Three-Dimensional Alternative Crosswalk Pattern  Active  Colored Pavements| Pavement Markings| Pedestrians| Symbols
3(09)-24 Interpretation  FHWA  XX  8/15/2013  Application of Colored Pavement    Colored Pavements| Pavement Markings
3(09)-23 Experiment  City of Chicago  IL  5/14/2013  Red Colored Pavement for Transit-Only Lanes  Active  Colored Pavements| Pavement Markings| Preferential and Managed Lanes
3(09)-22 Experiment  Minnesota DOT  MN  3/5/2013  Lined Longitudinal Bar Crosswalk  Active  Pavement Markings| Pedestrians
3(09)-21 Experiment  Wisconsin DOT  WI  3/11/2013  Chevron Pavement Markings for Speed Reduction (denied)  Denied  Pavement Markings| Symbols
3(09)-20 Change  NCUTCD  XX  1/11/2013  Section 3I.02    Pavement Markings
3(09)-19 Change  NCUTCD  XX  1/11/2013  Aesthetic Treatments within Crosswalks    Colored Pavements| Pavement Markings| Pedestrians
3(09)-18 Experiment  San Francisco Metropolitan Transportation Agency  CA  8/17/2012  Red Colored Pavement for Transit-Only Lanes  Active  Colored Pavements| Pavement Markings| Preferential and Managed Lanes
3(09)-17 Interpretation  Litwornia Associates, Inc.  NJ  8/16/2012  Textured Pavement Between Crosswalks    Pavement Markings| Pedestrians
3(09)-16 Change  NCUTCD  XX  6/22/2012  Revise standard statements to guidance and support, and delete a standard statement    Pavement Markings
3(09)-15 Change  NCUTCD  XX  6/22/2012  Allow curved transition to be used where an edge line, channelizing line, or dotted extension line changes direction    Pavement Markings
3(09)-14 Change  NCUTCD  XX  1/20/2012  Crosswalk Markings Application Criteria    Pavement Markings| Pedestrians
3(09)-13 Change  NCUTCD  XX  1/20/2012  Edits to Section 3H.01    Pavement Markings
3(09)-12 Change  NCUTCD  XX  6/23/2011  Crosswalk Markings    Pavement Markings| Pedestrians
3(09)-11 Experiment  Iowa State University  IA  8/29/2011  Transverse Bar Speed Reduction Markings  Active  Pavement Markings
3(09)-10 Experiment  Iowa State University  IA  8/29/2011  Red Message Background and White Dragon’s Teeth Markings at Speed Reduction Location  Active  Colored Pavements| Pavement Markings
3(09)-9 Change  Town of Ridgefield  CT  5/13/2011  Single Yellow Center Line    Pavement Markings
3(09)-8 Interpretation  New York State DOT  NY  4/26/2011  Colored Pavement Treatments in Crosswalks    Colored Pavements| Pavement Markings| Pedestrians
3(09)-7 Experiment  St. Louis County  MN  2/4/2011  Transverse Speed Reduction Markings (denied)  Denied  Pavement Markings| Symbols
3(09)-6 Interpretation  PROMARK, Inc.  MT  3/16/2011  Word and Symbol Markings - Stencil Gaps    Pavement Markings| Symbols
3(09)-5 Change  Citizen  NY  8/9/2010  Color of Line Extensions Through Intersections    General| Pavement Markings
3(09)-4 Change  Citizen  NY  8/7/2010  Two-Way Left-Turn Lane Markings    General| Pavement Markings
3(09)-3 Experiment  Kentucky Transportation Cabinet  KY  7/16/2010  Advance Curve Marking  Active  Pavement Markings| Symbols
3(09)-2 Experiment  Iowa State University (on behalf of Des Moines County and Harrison County)  IA  5/12/2010  Advance Curve Marking  Final Report Received  Pavement Markings| Symbols
3(09)-1 Experiment  City of Chicago  IL  12/14/2009  3-D Markings - "Look for Pedestrians"  Active  Pavement Markings| Pedestrians| Symbols
3-233 Change  Town of Ridgefield  CT  10/19/2009  Single Yellow Center Line    General| Pavement Markings
3-232 Interpretation  Citizen  AZ  10/15/2009  Markings for Red Light Violations    Pavement Markings| Traffic Control Signals
3-231 Experiment  Minnesota DOT  MN  9/30/2009  Yellow Right Edge Line for Priced Dynamic Shoulder Lane  Active  Active Traffic Management| Pavement Markings| Preferential and Managed Lanes
3-230 Interpretation  Minnesota DOT  MN  6/9/2009  Illuminated Raised Pavement Markers for Priced Dynamic Shoulder Lane    Active Traffic Management| In-Roadway Warning Lights| Pavement Markings| Preferential and Managed Lanes| Raised Pavement Markers
3-229 Experiment  Town of Underhill  VT  6/22/2009  Transverse Speed Reduction Markings  Active  Pavement Markings
3-228 Change  NCUTCD  XX  2/4/2009  Minimum Retroreflectivity for Longitudinal Markings    General| Introduction| Pavement Markings
3-227 Experiment  Wisconsin DOT  WI  2/23/2009  Transverse Speed Reduction Markings  Active  Pavement Markings
3-226 Experiment  Port Authority of NY and NJ  NJ  1/2/2009  Diamond Marking for Part-Time HOV Lane  Active  Pavement Markings| Preferential and Managed Lanes
3-225 Experiment  Florida DOT  FL  9/2/2008  Transverse Speed Reduction Markings  Inactive  Pavement Markings
3-224 Experiment  Virginia DOT  VA  10/30/2008  Zig Zag Marking for Crossing Warning  Final Report Received  Pavement Markings| Pedestrians
3-223 Interpretation  New York State DOT  NY  8/21/2008  Channelizing Lines    Pavement Markings
3-222 Experiment  Kansas DOT  KS  3/18/2008  Colored Pavement for Warning of Reduced Speed  Active  Colored Pavements| Pavement Markings
3-221 Experiment  Minnesota DOT  MN  12/17/2007  Fishhook Arrows Lane-Use Markings for Roundabouts  Inactive  Pavement Markings| Roundabouts and Circular Intersections| Symbols
3-220 Experiment  City of Columbia  MO  1/17/2008  Green Bike Lanes  Inactive  Bikes| Colored Pavements| Pavement Markings
3-218 Interpretation  Oxford Construction Company  GA  9/18/2007  Color of Delineators vs. Object Markers    Delineators| Signs - Warning; Object Markers
3-217 Interpretation  Citizen  UT  12/17/2007  Use of Lane Between Two Solid Double Yellow Lines    Pavement Markings
3-216 Interpretation  Attorney  WI  12/13/2007  Meaning of Solid White Line    Pavement Markings| Signs - Regulatory; Barricades; Gates
3-215 Experiment  City of Philadelphia  PA  11/30/2007  3-D Markings  Active  Pavement Markings
3-214 Experiment  Minnesota DOT  MN  11/5/2007  Transverse Speed Reduction Markings (denied)  Inactive  Pavement Markings
3-213 Change  City of San Francisco  CA  11/8/2007  Taper Length of Obstruction Approach Markings    Pavement Markings
3-212 Change  Citizen  FL  9/21/2007  Black Contrast Markings    Pavement Markings
3-211 Change  NCUTCD  XX  6/21/2007  Pavement Markings Used with Rumble Strips    Pavement Markings
3-210 Change  NCUTCD  XX  6/22/2007  Dotted Lane Lines for Non-Continuing Lanes    Pavement Markings
3-209 Experiment  City of Salt Lake City  UT  8/23/2007  Transverse Speed Reduction Markings  Active  Pavement Markings
3-208 Experiment  Wisconsin DOT  WI  6/18/2007  Dot with Arrows Lane-Use Markings for Roundabouts  Inactive  Pavement Markings| Roundabouts and Circular Intersections| Symbols
3-207 Interpretation  Citizen  FL  9/12/2007  ONLY Marking with Through Arrow    Pavement Markings| Roundabouts and Circular Intersections
3-206 Experiment  Kansas DOT  KS  8/1/2007  Transverse Speed Reduction Markings  Inactive  Pavement Markings
3-205 Experiment  Georgia DOT  GA  5/1/2007  Transverse Marking for Intersection Warnings  Active  Pavement Markings
3-204 Experiment  Clackamas County  OR  4/4/2007  Fishhook Arrow Lane-Use Markings for Roundabouts (also see Official Ruling 2-616)  Inactive  Pavement Markings| Roundabouts and Circular Intersections| Symbols
3-203 Change  NCUTCD  XX  1/19/2007  Move Object Markers and Barricades to Part 2    Signs - Regulatory; Barricades; Gates| Signs - Warning; Object Markers
3-202 Change  NCUTCD  XX  1/19/2007  Edge Lines When Bike Lane is on Roadway    Bikes| Pavement Markings
3-201 Interpretation  South Dakota DOT  SD  1/3/2007  Stop Lines for Yield Conditions    Pavement Markings| Pedestrians
3-200 Interpretation  Citizen  NY  12/4/2006  Dilemma Zone Pavement Markings    Pavement Markings| Traffic Control Signals
3-199 Experiment  Georgia DOT  GA  10/10/2006  Colored Pavement and Transverse Markings (denied)  Denied  Pavement Markings
3-198 Experiment  City of New York  NY  10/18/2006  Colored Pavement for Bus Lanes in New York City  Final Report Received  Colored Pavements| Pavement Markings| Preferential and Managed Lanes
3-197 Change  NCUTCD  XX  6/29/2006  Splatter Marking Materials    Pavement Markings
3-196 Interpretation  Consultant  MN  7/1/2006  Splatter Marking Materials    Pavement Markings
3-195 Experiment  Wisconsin DOT  WI  6/27/2006  Fishhook Arrow Lane-Use Markings for Roundabouts (also see Official Ruling 2-597)  Inactive  Pavement Markings| Roundabouts and Circular Intersections| Symbols
3-194 Change  Filtrona Extrusion  WA  6/15/2006  Longitudinal Channelizers    Pavement Markings| Railroad Grade Crossings| Temporary Traffic Control Zones
3-193 Experiment  Wisconsin DOT  WI  6/6/2006  Transverse Speed Reduction Markings  Inactive  Pavement Markings
3-192 Experiment  Iowa State University (on behalf of towns of Gilbert, Dexter, and Slater)  IA  6/10/2006  Transverse Speed Reduction Markings and Colored Speed Limit Markings  Inactive  Colored Pavements| Pavement Markings
3-191 Experiment  Washington State DOT  WA  4/25/2006  Dots Markings for Anti-Tailgating  Active  Pavement Markings| Symbols
3-190 Experiment  Iowa State University (on behalf of towns of Roland and Union)  IA  5/4/2006  Transverse Speed Reduction Markings - Converging Chevrons  Active  Pavement Markings
3-189 Experiment  Washington State DOT  WA  3/14/2006  Fishhook Arrows Lane-Use Markings for Roundabouts (also see Official Ruling 2-590)  Inactive  Pavement Markings| Roundabouts and Circular Intersections| Symbols
3-188 Experiment  Virginia DOT  VA  3/30/2006  Transverse Speed Reduction Markings  Inactive  Pavement Markings
3-187 Interpretation  Citizen  TX  2/16/2006  Requirements for Use of Lane Lines and Other Markings    Pavement Markings
3-186 Experiment  Oregon DOT  OR  3/17/2006  Transverse Speed Reduction Markings  Inactive  Pavement Markings
3-185 Change  NCUTCD  XX  1/20/2006  Roundabout Markings    Pavement Markings| Roundabouts and Circular Intersections
3-184 Change  NCUTCD  XX  1/20/2006  Interstate Shield Pavement Marking    Pavement Markings| Symbols
3-183 Change  NCUTCD  XX  1/20/2006  Use of Stop Lines and Yield Lines    Pavement Markings| Pedestrians
3-182 Experiment  Minnesota DOT  MN  3/10/2006  Dots Markings for Anti-Tailgating  Active  Pavement Markings| Symbols
3-181 Experiment  Maryland Transportation Authority  MD  10/11/2005  Purple Dot Markings for EZ Pass Lane at Tollbooth  Active  Pavement Markings| Symbols| Toll Facilities
3-180 Change  NCUTCD  XX  6/24/2005  Detectable Warning Surfaces and Crosswalk Markings at ADA Curb Ramps    Pavement Markings| Pedestrians
3-179 Interpretation  Flint Trading  NC  5/5/2005  Pavement Markings Alphabets    General| Pavement Markings
3-178 Interpretation  City of Bellevue  WA  3/21/2005  Retroreflective Colored Pavement – Additional Clarification    Colored Pavements| Pavement Markings| Pedestrians
3-177 Experiment  New York State DOT  NY  3/8/2005  Fishhook Arrows Lane-Use Markings for Roundabouts (also see Official Ruling 2-562)  Inactive  Pavement Markings| Roundabouts and Circular Intersections| Symbols
3-176 Interpretation  HIL-Tech, Ltd. (Canada)  XX  12/17/2004  Use of LED Device as Raised Pavement Markers    Raised Pavement Markers
3-175 Interpretation  Citizen  CA  11/15/2004  Warning Signs for Non-Intersection Crosswalks    Pavement Markings| Pedestrians| Signs - Warning; Object Markers
3-174 Interpretation  Rohm America LLC  NJ  12/1/2004  Continuous Line Segment Determination for Splatter Markings    Pavement Markings
3-173 Change  Citizen  NY  10/5/2004  Dotted Lane Lines and Yellow Left Edge Line Markings at Exits and Entrances    Pavement Markings
3-172 Experiment  Georgia DOT  GA  8/13/2004  Transverse Speed Reduction Markings – Converging Chevrons  Final Report Received  Pavement Markings
3-171 Change  NCUTCD  XX  6/24/2004  Older Driver Recommendations for Raised Pavement Markers for Median Noses, Gores, and Curves    Raised Pavement Markers
3-170 Change  NCUTCD  XX  6/24/2004  Older Driver Recommendations for Arrows and Line Extensions for Offset Left Turn Lanes    Pavement Markings| Symbols
3-169 Interpretation  Florida DOT  FL  8/17/2004  Colored Pavement within Crosswalks    Colored Pavements| Pavement Markings| Pedestrians
3-168 Experiment  Vermont Agency of Transportation  VT  9/13/2004  Transverse Speed Reduction Markings  Active  Pavement Markings
3-167 Change  NCUTCD  XX  1/9/2004  Do Not Block Intersection Markings    Pavement Markings
3-166 Change  NCUTCD  XX  1/9/2004  Staggered Stop Lines and Yield Lines    Pavement Markings
3-165 Experiment  Texas DOT  TX  3/15/2004  Transverse Speed Reduction Markings  Inactive  Pavement Markings
3-164 Experiment  Mississippi DOT  MS  2/10/2004  Transverse Speed Reduction Markings  Inactive  Pavement Markings
3-163 Change  Citizen  PA  8/22/2004  Color of Lines    Pavement Markings
3-162 Interpretation  Virginia DOT  VA  1/20/2004  Interstate Shield Pavement Marking    Pavement Markings| Symbols
3-161 Experiment  New York State DOT  NY  10/21/2003  Transverse Speed Reduction Markings  Inactive  Pavement Markings
3-160 Experiment  City of Central Point  OR  7/30/2003  Yellow-Green Pavement Markings for Pedestrian Crossings (denied)  Denied  Pavement Markings| Pedestrians
3-159 Experiment  Michigan DOT  MI  6/19/2003  Double Line Edge Lines for Rumble Stripes  Inactive  Pavement Markings
3-158 Change  Citizen  IL  3/3/2003  Colored Pavement at Ramp Terminals (denied)    Colored Pavements| Pavement Markings
3-157 Experiment  City of Goodyear  AZ  12/11/2002  Yellow-Green Pavement Markings for Pedestrian Crossings (denied)  Denied  Pavement Markings| Pedestrians
3-156 Interpretation  Virginia DOT  VA  10/9/2002  Longitudinal Line with Cross-Hatch Markings    Pavement Markings
3-155 Interpretation  FHWA Central Federal Lands Highways  XX  5/16/2002  Type 2 Object Markers    Signs - Warning; Object Markers
3-154 Experiment  Illinois DOT  IL  4/12/2002  Transverse Speed Reduction Markings – Converging Chevrons  Active  Pavement Markings
3-153 Change  Citizen  NJ  12/17/2001  Angled Markings for Lane-Reduction Transitions    Pavement Markings
3-152 Interpretation  FHWA VT Division Office  VT  11/27/2001  Colored Pavement within Crosswalks    Colored Pavements| Pavement Markings| Pedestrians
3-151 Change  Citizen  IL  8/2/2001  Changes in Markings Standards to Improve Detection of Center Curbs and Median Strips    Pavement Markings
3-150 Interpretation  City of Coconut Creek  FL  7/19/2001  Stop Line with Do Not Block Intersection Sign    Pavement Markings| Signs - Regulatory; Barricades; Gates
3-149 Interpretation  Citizen  XX  3/27/2000  Raised Pavement Markers versus Painted Markings    Pavement Markings| Raised Pavement Markers
3-123 Interpretation  Citizen  AZ  11/1/2000  Red Pavement Markings for Red Light Enforcement    Pavement Markings| Traffic Control Signals
3-122 Change  U.S. Congress - Legislation  RI  11/28/1995  Bristol, RI, Center Line Marking    Pavement Markings
3-121 Experiment  Colorado DOT  CO  9/5/2000  Signs and Markings in Roundabout Design Guide (denied)  Denied  Pavement Markings| Roundabouts and Circular Intersections| Signs - Guide| Signs - Regulatory; Barricades; Gates| Signs - Warning; Object Markers
3-103 Experiment  Pennsylvania DOT  PA  8/15/2000  In-Roadway Warning Lights at Crosswalks  Inactive  In-Roadway Warning Lights| Pedestrians
3-102 Experiment  Pennsylvania DOT  PA  6/26/2000  Dots Markings for Anti-Tailgating  Active  Pavement Markings| Symbols
3-101 Experiment  Washington State DOT  WA  7/21/2000  Advance Yield Pavement Markings (also see Official Ruling 2-431)  Inactive  Pavement Markings| Symbols
3-100 Experiment  Minnesota DOT  MN  7/7/2000  Transverse Speed Reduction Markings – Sharks Teeth (denied)  Denied  Pavement Markings
3-99 Experiment  Wisconsin DOT  WI  2/2/1999  Transverse Speed Reduction Markings – Converging Chevrons  Final Report Received  Pavement Markings
3-86 Experiment  Kansas DOT  KS  8/7/1998  Transverse Speed Reduction Markings in Work Zones  Final Report Received  Pavement Markings| Temporary Traffic Control Zones
3-85 Change  Ohio DOT  OH  5/7/1998  Spacing of Raised Pavement Markers    Raised Pavement Markers
3-84 Experiment  New Mexico DOT  NM  3/17/1997  Transverse Speed Reduction Markings  Inactive  Pavement Markings
3-83 Change  Citizen  IL  11/15/1996  Red Stop Lines    Pavement Markings
3-82 Experiment  American Automobile Association (AAA)  XX  5/16/1996  Transverse Speed Reduction Markings (denied)  Denied  Pavement Markings
3-81 Change  U.S. Congress - Legislation  RI  11/28/1995  Bristol, RI, Center Line Marking    Pavement Markings
3-80 Change  Davidson Plastics Corporation  WA  9/18/1995  Spacing of Raised Pavement Markers Substituting for Markings and Temporary Markings in Work Zones    Raised Pavement Markers| Temporary Traffic Control Zones
3-79 Interpretation  Wyoming DOT  WY  5/10/1995  Spacing of Raised Pavement Markers Substituting for Markings and Temporary Markings in Work Zones    Raised Pavement Markers| Temporary Traffic Control Zones
3-78 Change  Wyoming DOT  WY  9/15/1995  Spacing of Raised Pavement Markers in Work Zones if Drums Are Used    Raised Pavement Markers| Temporary Traffic Control Zones
3-77 Change  City of Seattle  WA  5/5/1994  Road Ends Marker    Signs - Warning; Object Markers
3-76 Change  Pennsylvania DOT  PA  4/7/1993  Supplemental Center Lines on 2-Lane, 2-Way Roads    Pavement Markings
3-75 Experiment  FHWA  XX  11/20/1992  All-Weather Pavement Markings  Inactive  Pavement Markings
3-74 Interpretation  FHWA  XX  4/15/1992  Broken Line Segments    Pavement Markings
3-73 Change  U.S. Congress HR5513 Legislation  XX  9/13/1995  Warrants for Center Line and Edge Line Pavement Markings    Pavement Markings| Warrants
3-72 Interpretation  Florida DOT  FL  9/15/1992  Raised Pavement Markers In Lieu of Post-Mounted Delineators on Ramps    Delineators| Raised Pavement Markers
3-71 Experiment  Ohio DOT  OH  5/9/1991  Spacing of Raised Pavement Markers  Inactive  Raised Pavement Markers
3-70 Interpretation  Montgomery County  MD  4/10/1991  Location of Crosswalk Lines for a Single Shared Handicapped Curb Ramp on a Corner    Pavement Markings| Pedestrians
3-69 Change  Montgomery County  MD  4/10/1991  Option to Use Dotted Lane-Drop Markings for Arterial Street Lane Drops    Pavement Markings
3-68 Change  Montgomery County  MD  4/10/1991  Option to Use Dotted Line as a Special Guide for Tapers    Pavement Markings
3-67 Interpretation  Hawaii DOT  HI  12/26/1990  Use of Lane-Use Arrow and ONLY Markings in Turn Bays    Pavement Markings
3-66 Change  City of Largo  FL  5/7/1990  Use of Yellow Channelizing Line within a Two-Way Left Turn Lane    Pavement Markings
3-65 Interpretation  Citizen  MD  4/3/1990  Sequence of Arrow and ONLY Markings    Pavement Markings
3-64 Change  Florida DOT  FL  9/14/1989  Use of Blue Lines Instead of White for Handicapped Parking Spaces    Pavement Markings
3-63 Interpretation  City of Hagerstown  MD  9/26/1989  Minimum Width to Establish Two Lanes by Lane Line Markings    Pavement Markings
3-62 Change  NCUTCD  XX  2/15/1988  Use of Raised Pavement Markers on Right-Hand Edge Line    Raised Pavement Markers
3-61 Interpretation  New Jersey Turnpike Authority  NJ  2/6/1989  Color of Left Edge Line on Dual-Dual Roadways    Pavement Markings
3-60 Interpretation  City of Orlando  FL  12/6/1988  Color of Dotted Extension Lines through Intersections    Pavement Markings
3-59 Change  Center for Auto Safety  XX  2/18/1988  Placement, Spacing, and Retroreflection of Post-Mounted Delineators    Delineators
3-58 Experiment  Oklahoma DOT  OK  3/4/1988  Green and Yellow Raised Pavement Markers for No-Passing Zones (also see Official Ruling 2-174) (denied)  Inactive  Raised Pavement Markers
3-57 Change  Missouri DOT  MO  9/28/1988  Color of Type 3 Object Markers    Signs - Warning; Object Markers
3-56 Experiment  Ohio DOT  OH  5/1/1988  Delineator Mounting Height, Spacing, Size, and Configuration  Inactive  Delineators
3-55 Experiment  Oklahoma DOT  OK  3/4/1988  Green and Yellow Raised Pavement Markers for No-Passing Zones  Inactive  Raised Pavement Markers
3-54 Change  Kansas DOT  KS  10/19/1987  Width and Spacing of Longitudinal Bars for Crosswalk Markings    Pavement Markings| Pedestrians
3-53 Experiment  Missouri DOT  MO  10/27/1987  Single Solid Yellow Center Line for Roads with ADT of 500 or Less (denied)  Denied  Pavement Markings
3-52 Interpretation  Pennsylvania DOT  PA  3/2/1987  Use of Object Markers and Tubular Markers on Approach End of Median Island    Pavement Markings| Signs - Warning; Object Markers
3-51 Interpretation  Citizen  MD  2/17/1987  Extension of a Double Yellow Line through an Intersection    Pavement Markings
3-50 Interpretation  Citizen  MD  2/17/1987  Segment-to-Gap Ratio of Dotted Extension Lines through an Intersection    Pavement Markings
3-49 Change  Citizen  MD  2/17/1987  Segment-to-Gap Ratio of Dotted Line for Lane Drop    Pavement Markings
3-48 Change  Citizen  MD  2/17/1987  Lane Line for Auxiliary Lane in a Cloverleaf Interchange    Pavement Markings
3-47 Interpretation  Citizen  MD  11/24/1986  No-Parking Zones and Parking Space Markings    Pavement Markings
3-46 Change  FHWA WA Division Office  WA  4/23/1986  Discontinue Portion of Edge Line Markings at Exit Ramps    Pavement Markings
3-45 Change  Washington State DOT  WA  3/11/1986  Diamond Pattern Barricades for Road/Ramp Closure    Signs - Regulatory; Barricades; Gates| Temporary Traffic Control Zones
3-44 Change  Proven Products, Inc.  OR  5/12/1985  PACO Lane Divider and FOX Lane Marker Devices as Channelizing Devices    Pavement Markings| Temporary Traffic Control Zones
3-43 Interpretation  U.S. Department of the Army  XX  3/21/1986  Color of Curb Markings to Indicate No Parking    Pavement Markings
3-42 Change  Colorado DOT  CO  9/26/1985  Pavement Markings for Diagonal Parking Spaces    Pavement Markings
3-41 Change  New York State DOT  NY  9/27/1985  Narrow Arrow Markings    Pavement Markings
3-40 Change  Center for Auto Safety  XX  9/12/1985  Revised Standards for Lengths of No-Passing Zone Markings    Pavement Markings
3-39 Change  FHWA  XX  5/9/1985  Delineator Placement and Spacing    Delineators
3-38 Change  North Carolina DOT  NC  8/15/1985  Speeds for No-Passing Zone Markings at Curves    Pavement Markings
3-37 Interpretation  City of Lincoln  NE  5/10/1985  Checkerboard Pattern of Transverse Crosswalk Line    Pavement Markings| Pedestrians
3-36 Interpretation  City of Annapolis  MD  3/6/1985  Stop Lines with Mid-Block Crosswalk    Pavement Markings| Pedestrians
3-35 Change  Center for Auto Safety  XX  2/20/1985  Warrants for Center Line Markings    Pavement Markings
3-34 Change  Missouri DOT  MO  9/17/1984  Single Solid Yellow Center Line Markings    Pavement Markings
3-32 Interpretation  C. E. Maguire, Inc.  CT  9/25/1984  Colored Pavement Surfaces of Brick or Stone    Pavement Markings| Pedestrians
3-31 Experiment  New York State DOT  NY  5/23/1984  Narrow Arrow Markings  Inactive  Pavement Markings
3-30 Change  NCUTCD  XX  4/5/1984  Wrong-Way Arrows and Lane-Use Arrow Markings on Ramps    Pavement Markings| Symbols
3-29 Change  NCUTCD  XX  8/10/1981  Chevron Markings in Gore Area    Pavement Markings
3-28 Change  City of Mesa  AZ  9/12/1983  Chevron Design for Object Marker    Signs - Warning; Object Markers
3-27 Change  FHWA  XX  10/15/1981  Skid Resistance of Marking Materials    Pavement Markings
3-26 Change  Missouri DOT  MO  9/10/1981  Change Requirements for No-Passing Zone Markings to Options    Pavement Markings
3-25 Change  New York State DOT  NY  10/8/1980  Painted Markings at Edge of Handicapped Curb Ramps for Low-Vision Pedestrians    Pavement Markings| Pedestrians
3-24 Change  Institute of Transportation Engineers (ITE)  XX  8/26/1980  Color and Spacing of Delineators on Truck Escape Ramps    Delineators
3-23 Change  FHWA  XX  7/8/1980  Mounting Height of Object Markers    Signs - Warning; Object Markers
3-22 Change  Utah DOT  UT  2/8/1980  Symbol Alternative for School Word Message Marking    Pavement Markings| Symbols
3-21 Change  Idaho Transportation Department  ID  8/2/1980  Lateral Placement of Delineators    Delineators
3-20 Change  Citizen  PA  11/28/1979  New System of Colors and Patterns of Center Lines to Indicate Allowed Range of Speeds on Highways    Pavement Markings
3-19 Experiment  Potters Industries, Inc.  NJ  12/12/1979  Delineator Configurations and Spacing  Inactive  Delineators
3-18 Change  FHWA  XX  10/17/1979  Mandatory Marking of Interchange Ramps    Pavement Markings
3-17 Change  FHWA  XX  5/24/1979  Pavement Markings for Diagonal Parking Spaces    Pavement Markings
3-16 Change  Ohio DOT  OH  5/25/1979  Wrong-Way Arrow Markings at Ramp Terminals    Pavement Markings
3-15 Experiment  NC DOT, TX DOT, and UT DOT  XX  4/17/1979  No-Passing Zone Advance Dotted Line Treatment  Inactive  Pavement Markings
3-14 Change  Lake County  IL  12/13/1978  Markings for Bypass Lanes    Pavement Markings
3-13 Change  FHWA  XX  11/27/1978  Mandatory Use of Lane Line Markings    Pavement Markings
3-12 Change  FHWA  XX  11/27/1978  Mandatory Use of Center Line Markings    Pavement Markings
3-11 Interpretation  Nebraska Department of Roads  NE  6/5/1978  Dotted Line Extension of Edge Line at Entrance Ramps    Pavement Markings
3-10 Change  California DOT  CA  5/5/1978  Lane Drop Marking for Lane Line (M-58)    Pavement Markings
3-9 Change  Amerace Corporation  IL  3/19/1978  Use and Spacing of Raised Pavement Markers to Supplement or Substitute for Lines (M-57)    Raised Pavement Markers
3-8 Change  Airport Markings, Inc.  VA  11/4/1977  Slanted Arrow Marking for Merge Condition (M-56)    Pavement Markings| Symbols
3-7 Change  NCUTCD  XX  9/14/1977  Eliminate Black-and-White Object Markers (M-54)    Signs - Warning; Object Markers
3-6 Change  FHWA  XX  9/14/1977  Mandatory Edge Line Markings for Rural Multilane Divided Highways (M-51)    Pavement Markings| Warrants
3-5 Change  Private Company  PA  11/23/1976  Revised Procedures for Determining No-Passing Zones (M-46)    Pavement Markings
3-4 Change  New Jersey DOT  NJ  9/27/1978  Eye-Height for Establishing No-Passing Zones (M-42)    Pavement Markings
3-3 Change  Sacramento County  CA  6/10/1975  Use of 2-inch Edge Lines (M-41)    Pavement Markings
3-2 Change  Various State DOTs  XX  4/30/1975  Delineators on Tangent Freeway Sections (M-35)    Delineators| Raised Pavement Markers
3-1 Experiment  City of Sioux City  IA  8/10/1973  Use of Single Solid Yellow Center Line in Urban Areas to Restrict, but Not Prohibit, Crossing  Inactive  Pavement Markings
4(09)-63 Experiment  City of Portland  OR  7/7/2016  Detector Confirmation Lights  Active  Bikes| Traffic Control Signals
4(09)-62 Experiment  California DOT  CA  1/18/2017  Yellow LED Borders on Pedestrian Signal Heads  Active  Pedestrian Signals| Pedestrians| Traffic Control Signals
4(09)-61 Interpretation  Delaware DOT  DE  10/26/2016  Use of an Alternative Pedestrian Hybrid Beacon Sign    Beacons| Pedestrians| Signs| Signs - Regulatory; Barricades; Gates
4(09)-60 Change  NCUTCD  XX  6/10/2016  Site Roadways Open to Public Travel    Traffic Control Signals
4(09)-59 Interpretation  McTrans at the University of Florida  FL  7/27/2016  Clarification of Higher-Volume Minor-Street Approach    Traffic Control Signals| Warrants
4(09)-58 Interpretation  Douglas County  CO  10/14/2015  Placement of Rectangular Rapid Flashing Beacon Units above Sign    Beacons| Pedestrians
4(09)-57 Experiment  Florida DOT  FL  3/7/2016  Red Rectangular Rapid Flashing Beacons on State Road 417 Exit Ramps  Active  Beacons
4(09)-56 Experiment  Nevada DOT  NV  11/24/2015  Red Rectangular Rapid Flashing Beacons on Exit Ramps  Active  Beacons
4(09)-55 Experiment  Maine DOT  ME  9/29/2015  Red Rectangular Rapid Flashing Beacons on Exit Ramps  Active  Beacons
4(09)-54 Experiment  City of Phoenix  AZ  2/2/2015  Position of Rectangular Rapid Flashing Beacons  Final Report Received  Beacons| Pedestrians
4(09)-53 Experiment  Douglas County  CO  1/28/2015  Position of Rectangular Rapid Flashing Beacons  Final Report Received  Beacons| Pedestrians
4(09)-52 Experiment  City of Marshall  TX  1/16/2015  Position of Rectangular Rapid Flashing Beacons  Final Report Received  Beacons| Pedestrians
4(09)-51 Experiment  City of Vancouver  WA  2/21/2014  Simultaneous Flashing of Pedestrian Hybrid Beacons  Active  Beacons| Pedestrian Signals| Pedestrians
4(09)-50 Experiment  Virginia DOT  VA  8/8/2014  Lane Control Signals for Active Traffic Management  Active  Active Traffic Management| Signals - Lane-Use; Ramp Control; Movable Bridge
4(09)-49 Experiment  Central Florida Expressway Authority  FL  5/19/2014  Red Rectangular Rapid Flashing Beacons on Exit Ramps  Active  Beacons
4(09)-48 Experiment  City of Aurora  IL  10/2/2014  Position of Rectangular Rapid Flashing Beacons  Final Report Received  Beacons| Pedestrians
4(09)-47 Experiment  Florida DOT  FL  7/16/2014  Red Rectangular Rapid Flashing Beacons on Exit Ramps  Active  Beacons
4(09)-46 Experiment  Florida DOT  FL  9/18/2014  Red In-Roadway Warning Lights on Exit Ramps  Active  In-Roadway Warning Lights
4(09)-45 Experiment  Michigan DOT  MI  9/8/2014  Countdown Pedestrian Signal without a Flashing Don’t Walk Display  Active  Pedestrian Signals| Pedestrians| Traffic Control Signals
4(09)-44 Experiment  Minnesota DOT for Minneapolis  MN  6/3/2014  Yellow-Red Flashing Beacons at Crosswalks  Active  Beacons| Pedestrians
4(09)-43 Change  NCUTCD  XX  6/28/2014  Bicycle Signal Faces    Bikes| Traffic Control Signals
4(09)-42 Change  NCUTCD  XX  6/28/2014  Reorganization and Revisions to Part 4    Traffic Control Signals
4(09)-41 Interpretation  Electrotechnics Corporation  TX  7/9/2014  Additional Flash Pattern for Rectangular Rapid Flashing Beacons    Beacons| Pedestrians
4(09)-40 Interpretation  Citizen  VA  6/13/2014  Audible Countdown Pedestrian Signals    Pedestrian Signals| Pedestrians| Traffic Control Signals
4(09)-39 Experiment  City of Austin  TX  12/20/2013  Circular Rapid Flashing Beacons  Final Report Received  Beacons| Pedestrians
4(09)-38 Interpretation  Carmanah Technologies Corporation (Canada)  XX  9/25/2013  Rectangular Rapid Flashing Beacon Flashing Extensions and Delays    Beacons| Pedestrians
4(09)-37 Interpretation  Carmanah Technologies Corporation (Canada)  XX  9/24/2013  Definition of Dimming    Beacons| Pedestrians| Traffic Control Signals
4(09)-36 Change  NCUTCD  XX  6/28/2013  Shortening or Omitting a Pedestrian Change Interval when Transitioning into Preemption    Pedestrian Signals| Pedestrians| Traffic Control Signals
4(09)-35 Experiment  City of Milwaukee  WI  5/28/2013  Circular Rapid Flashing Beacons  Final Report Received  Beacons| Pedestrians
4(09)-34 Experiment  City of Flagstaff  AZ  5/2/2013  Circular Rapid Flashing Beacons  Final Report Received  Beacons| Pedestrians
4(09)-33 Experiment  City of Waco  TX  2/15/2013  Circular Rapid Flashing Beacons  Inactive  Beacons| Pedestrians
4(09)-32 Interpretation  City of Milwaukee  WI  2/14/2013  Coordinated Operation of a Pedestrian Hybrid Beacon    Beacons| Pedestrian Signals| Pedestrians
4(09)-31 Experiment  City of College Station  TX  2/5/2013  Circular Rapid Flashing Beacons  Final Report Received  Beacons| Pedestrians
4(09)-30 Change  NCUTCD  XX  1/11/2013  Beacons within the Border of a Sign    Beacons| School Areas| Signs| Signs - Regulatory; Barricades; Gates
4(09)-29 Interpretation  California DOT  CA  1/22/2013  Required Number of Ramp Control Signal Faces    Signals - Lane-Use; Ramp Control; Movable Bridge
4(09)-28 Interpretation  Electrotechnics Corporation  TX  1/6/2013  Dimming of Flashing Beacons during Daytime Conditions    Beacons| Traffic Control Signals
4(09)-27 Experiment  Utah DOT  UT  11/8/2012  Static Signs for Arterial Lane-Use Control  Active  Signals - Lane-Use; Ramp Control; Movable Bridge
4(09)-26 Interpretation  Migma Systems, Inc.  MA  11/26/2012  Passive Activation of Locator Tones at Accessible Pedestrian Signals    Pedestrian Signals| Pedestrians| Traffic Control Signals
4(09)-25 Interpretation  City of New York  NY  5/8/2012  Application of the Pedestrian Volume Warrant on Divided Roadways    Pedestrian Signals| Pedestrians| Traffic Control Signals| Warrants
4(09)-24 Interpretation  Electrotechnics Corporation  TX  7/11/2012  Dimming of Rectangular Rapid Flashing Beacons during Daytime Conditions    Beacons| Pedestrians
4(09)-23 Change  NCUTCD  XX  6/22/2012  Revised text for all of Section 4D.25    Traffic Control Signals
4(09)-22 Interpretation  Electrotechnics Corporation  TX  7/11/2012  Flashing Pattern for Existing Rectangular Rapid Flashing Beacons    Beacons| Pedestrians
4(09)-21 Interpretation  Spot Devices  NV  6/4/2012  Clarification of Rectangular Rapid Flashing Beacon Flashing Pattern    Beacons| Pedestrians
4(09)-20 Experiment  Wisconsin DOT  WI  12/2/2011  Alternative Displays for Freeway Lane-Use Control Signals  Active  Signals - Lane-Use; Ramp Control; Movable Bridge| Symbols
4(09)-18 Change  NCUTCD  XX  1/20/2012  Flashing Beacon Sizes    Beacons
4(09)-17 Interpretation  Electrotechnics Corporation  TX  11/10/2011  Rectangular Rapid Flashing Beacon Light Intensity    Beacons| Pedestrians
4(09)-16 Change  NCUTCD  XX  6/23/2011  Placement of Pedestrian Hybrid Beacons at or near Intersections    Beacons| Pedestrian Signals| Pedestrians
4(09)-15 Interpretation  Minnesota DOT  MN  11/18/2011  Variable Mode Left-Turn Display (Shared Lane)    Traffic Control Signals
4(09)-14 Interpretation  Delaware DOT  DE  7/28/2011  Red Clearance Interval in Pedestrian Hybrid Beacon Sequence    Beacons| Pedestrian Signals| Pedestrians
4(09)-13 Experiment  California DOT  CA  7/12/2011  Yellow LED Border on Ped Signal   Final Report Received  Pedestrian Signals| Pedestrians| Traffic Control Signals
4(09)-12 Experiment  City of Coachella  CA  6/1/2011  Circular Rapid Flashing Beacons  Active  Beacons| Pedestrians| School Areas
4(09)-11 Interpretation  Oregon DOT  OR  6/1/2011  Flashing Beacons Maximum Mounting Height    Beacons| Traffic Control Signals
4(09)-10 Interpretation  OMJC Signal, Inc.  IA  5/9/2011  Conflict Monitoring of Temporary and Portable Signals    Temporary Traffic Control Zones| Traffic Control Signals
4(09)-9 Experiment  City of Austin  TX  4/22/2011  Non-standard Sequence with Adaptive Flashing Red Arrow  Active  Traffic Control Signals
4(09)-8 Experiment  City of Santa Monica  CA  2/22/2011  Circular Rapid Flashing Beacons  Final Report Received  Beacons| Pedestrians
4(09)-7 Interpretation  New York State DOT  NY  1/4/2011  Size of Flashing Beacons    Beacons| Traffic Control Signals
4(09)-6 Interpretation  FHWA MN Division Office  MN  11/4/2010  Freeway Entrance Ramp Control Signals    Signals - Lane-Use; Ramp Control; Movable Bridge| Traffic Control Signals
4(09)-5 Interpretation  City of Auburn  WA  7/28/2010  Rectangular Rapid Flashing Beacons (RRFB) - Use with W11-15 Trail Crossing Sign    Beacons| Bikes| Pedestrians| Signs| Signs - Warning; Object Markers
4(09)-4 Interpretation  Western Michigan University  MI  7/15/2010  Rectangular Rapid Flashing Beacons (RRFB) - Flash Pattern    Beacons| Pedestrians
4(09)-3 Interpretation  Connecticut DOT  CT  7/28/2010  Accessible Pedestrian Signals with Exclusive Pedestrian Phase    Pedestrian Signals| Pedestrians
4(09)-2 Interpretation  City of Fort Collins  CO  6/24/2010  Hybrid Beacons Adjacent to Grade Crossings with Flashing Light Signals    Beacons| General| Railroad Grade Crossings| Traffic Control Signals
4(09)-1 Interpretation  City of Marysville  WA  2/2/2010  Covering Signals Out of Service    Traffic Control Signals
4-376 Interpretation  City of Federal Way  WA  11/10/2009  Rectangular Rapid Flashing Beacons (RRFB) - Overhead Mounting    Beacons| Pedestrians| School Areas| Signs| Signs - Warning; Object Markers
4-375 Experiment  City of Fort Wayne  IN  10/19/2009  Pedestrian Hybrid Beacon (HAWK)  Inactive  Beacons| Pedestrian Signals| Pedestrians
4-374 Experiment  City of Grafton  WI  10/16/2009  Pedestrian Hybrid Beacon (HAWK)  Inactive  Beacons| Pedestrian Signals| Pedestrians
4-373 Experiment  City of Glendale  AZ  8/19/2009  Pedestrian Hybrid Beacon (HAWK)  Inactive  Beacons| Pedestrian Signals| Pedestrians
4-372 Experiment  City of Fort Collins  CO  8/6/2009  Pedestrian Hybrid Beacon (HAWK)  Inactive  Beacons| Pedestrian Signals| Pedestrians
4-371 Experiment  City of Greenbelt  MD  8/4/2009  Pedestrian Hybrid Beacon (HAWK)  Inactive  Beacons| Pedestrian Signals| Pedestrians
4-370 Experiment  DeKalb County  GA  5/19/2009  Pedestrian Hybrid Beacon (HAWK)  Inactive  Beacons| Pedestrian Signals| Pedestrians
4-369 Experiment  St. Clair County  MI  6/16/2009  Pedestrian Hybrid Beacon (HAWK)  Inactive  Beacons| Pedestrian Signals| Pedestrians
4-368 Experiment  Michigan DOT  MI  5/15/2009  Pedestrian Hybrid Beacon (HAWK)  Inactive  Beacons| Pedestrian Signals| Pedestrians
4-367 Experiment  Delaware DOT  DE  5/19/2009  Pedestrian Countdown Through Yellow Interval  Final Report Received  Pedestrian Signals| Pedestrians
4-366 Experiment  Minnesota DOT  MN  5/11/2009  Pedestrian Hybrid Beacon (HAWK)  Inactive  Beacons| Pedestrian Signals| Pedestrians
4-365 Experiment  Ada County  ID  4/21/2009  Pedestrian Hybrid Beacon (HAWK)  Inactive  Beacons| Pedestrian Signals| Pedestrians
4-364 Experiment  Oregon DOT  OR  4/14/2009  Pedestrian Hybrid Beacon (HAWK)  Inactive  Beacons| Pedestrian Signals| Pedestrians
4-363 Experiment  Oakland County  MI  5/6/2008  Pedestrian Hybrid Beacon (HAWK)  Inactive  Beacons| Pedestrian Signals| Pedestrians
4-362 Experiment  City of Washington  DC  3/19/2009  Pedestrian Hybrid Beacon (HAWK)  Inactive  Beacons| Pedestrian Signals| Pedestrians
4-361 Experiment  City of Rexburg  ID  3/6/2009  Pedestrian Hybrid Beacon (HAWK)  Inactive  Beacons| Pedestrian Signals| Pedestrians
4-360 Experiment  Alaska DOT  AK  3/4/2009  Pedestrian Hybrid Beacon (HAWK)  Inactive  Beacons| Pedestrian Signals| Pedestrians
4-359 Experiment  Rhode Island DOT  RI  3/2/2009  Pedestrian Hybrid Beacon (HAWK)  Inactive  Beacons| Pedestrian Signals| Pedestrians
4-358 Interpretation  Marion County  FL  2/24/2009  Lateral Spacing of Supplement Signal Faces    Traffic Control Signals
4-357 Interpretation  Forensic Engineering, Inc.  NC  2/13/2009  Red Light Cameras    General| Traffic Control Signals
4-356 Experiment  City of Yucaipa  CA  1/20/2009  Pedestrian Hybrid Beacon (HAWK)  Inactive  Beacons| Pedestrian Signals| Pedestrians
4-355 Experiment  City of Phoenix  AZ  12/31/2008  Pedestrian Hybrid Beacon (HAWK)  Inactive  Beacons| Pedestrian Signals| Pedestrians
4-354 Experiment  City of Vancouver  WA  12/4/2008  Pedestrian Hybrid Beacon (HAWK)  Inactive  Beacons| Pedestrian Signals| Pedestrians
4-353 Experiment  City of Ankeny  IA  10/8/2008  Emergency Beacon  Inactive  Beacons| Traffic Control Signals
4-352 Experiment  City of Dodge City  KS  11/7/2008  Pedestrian Hybrid Beacon (HAWK)  Inactive  Beacons| Pedestrian Signals| Pedestrians
4-351 Experiment  City of Salt Lake City  UT  10/28/2008  Pedestrian Hybrid Beacon (HAWK)  Inactive  Beacons| Pedestrian Signals| Pedestrians
4-350 Experiment  City of Champaign  IL  10/30/2008  Pedestrian Hybrid Beacon (HAWK)  Inactive  Beacons| Pedestrian Signals| Pedestrians
4-349 Experiment  City of Peoria  AZ  9/22/2008  Pedestrian Hybrid Beacon (HAWK)  Inactive  Beacons| Pedestrian Signals| Pedestrians
4-348 Experiment  City of St. Louis  MO  5/6/2008  Signal Color by Word Message (denied)  Denied  Traffic Control Signals
4-347 Experiment  City of Washington  DC  6/16/2008  Pedestrian Countdown During Walk Interval  Final Report Received  Pedestrian Signals| Pedestrians
4-346 Interpretation  Vanasse Hangen Brustlin, Inc.  VA  7/28/2008  70 Percent Factor for Warrants    Traffic Control Signals| Warrants
4-345 Experiment  City of Golden  CO  6/30/2008  Pedestrian Hybrid Beacon (HAWK)  Inactive  Beacons| Pedestrian Signals| Pedestrians
4-344 Experiment  Marin County  CA  6/5/2008  Flashing Yellow Arrows for Right Turns  Inactive  Traffic Control Signals
4-343 Change  City of Wilmington  NC  6/4/2008  Emergency Signals    Beacons| Traffic Control Signals
4-342 Experiment  City of Alexandria  VA  10/20/2008  Pedestrian Hybrid Beacon (HAWK)  Inactive  Beacons| Pedestrian Signals| Pedestrians
4-341 Experiment  City of Los Angeles and Metropolitan Transit Authority  CA  3/10/2008  Steady Red In-Roadway Lights at Stop Lines  Active  In-Roadway Warning Lights
4-340 Change  City of Marietta  GA  3/17/2008  Pedestrian Countdown During Walk Interval    Pedestrian Signals| Pedestrians
4-339 Experiment  Ada County  ID  10/17/2007  Pedestrian Hybrid Beacon (HAWK)  Inactive  Beacons| Pedestrian Signals| Pedestrians
4-338 Experiment  City of Suwannee  GA  2/26/2008  Pedestrian Hybrid Beacon (HAWK)  Inactive  Beacons| Pedestrian Signals| Pedestrians
4-337 Experiment  Illinois DOT  IL  12/12/2007  Rectangular Rapid Flashing Beacons (RRFB)  Final Report Received  Beacons| Pedestrians
4-336 Interpretation  Florida DOT  FL  8/29/2007  Section 4C.01 Left Turns    Traffic Control Signals| Warrants
4-335 Experiment  Florida DOT  FL  8/1/2007  Pedestrian Hybrid Beacon (HAWK)  Inactive  Beacons| Pedestrian Signals| Pedestrians
4-334 Experiment  City of Lawrence  KS  7/16/2007  Pedestrian Hybrid Beacon (HAWK)  Inactive  Beacons| Pedestrian Signals| Pedestrians
4-333 Experiment  City of Kennewick  WA  7/2/2007  Pedestrian Hybrid Beacon (HAWK)  Inactive  Beacons| Pedestrian Signals| Pedestrians
4-332 Experiment  City of Santa Ana  CA  5/30/2007  Pedestrian Hybrid Beacon (HAWK)  Inactive  Beacons| Pedestrian Signals| Pedestrians
4-331 Experiment  City of St. Petersburg  FL  5/18/2007  Pedestrian Hybrid Beacon (HAWK)  Inactive  Beacons| Pedestrian Signals| Pedestrians
4-330 Experiment  City of Las Cruces  NM  4/16/2007  Rectangular Rapid Flashing Beacons (RRFB)  Inactive  Beacons| Pedestrians
4-329 Experiment  City of Marana  AZ  3/1/2007  Flashing Yellow Arrow for Right Turn  Inactive  Traffic Control Signals
4-328 Experiment  City of Denton  TX  3/22/2007  Pedestrian Hybrid Beacon (HAWK)  Inactive  Beacons| Pedestrian Signals| Pedestrians
4-327 Experiment  City of Garden Grove  CA  3/15/2007  Speed Limit Numeral on Signal Lens (denied)  Denied  Traffic Control Signals
4-326 Change  NCUTCD  XX  1/19/2007  Meaning of Flashing Orange Hand with Countdown    Pedestrian Signals| Pedestrians
4-325 Change  NCUTCD  XX  1/19/2007  Combine Sections on Accessible Pedestrian Signals and APS Detectors into a Single Section    Pedestrian Signals| Pedestrians
4-324 Change  NCUTCD  XX  1/19/2007  Additional Figures for Chapter 4D    Traffic Control Signals
4-323 Change  NCUTCD  XX  1/19/2007  Flashing Yellow Arrows for Right Turns    Traffic Control Signals
4-322 Change  NCUTCD  XX  1/19/2007  Use of the Word "Safe" and Its Variations in Part 4    Pedestrian Signals| Pedestrians| Signals - Lane-Use; Ramp Control; Movable Bridge| Traffic Control Signals
4-321 Change  NCUTCD  XX  1/19/2007  Pedestrian Hybrid Beacon (HAWK)    Beacons| Pedestrian Signals| Pedestrians
4-320 Interpretation  Naztec, Inc.  TX  1/9/2007  Steady Yellow Arrow After Flashing Yellow Arrow    Traffic Control Signals
4-319 Experiment  City of Charlotte  NC  12/28/2006  Pedestrian Hybrid Beacon (HAWK)  Inactive  Beacons| Pedestrian Signals| Pedestrians
4-318 Experiment  New Hampshire DOT  NH  10/16/2006  Purple Beacons for Toll Plaza ECT Lane Signs  Inactive  Beacons| Toll Facilities
4-316 Change  NCUTCD  XX  6/30/2006  Accessible Pedestrian Signals - Revisions    Pedestrian Signals| Pedestrians
4-315 Change  NCUTCD  XX  6/30/2006  Flashing Yellow Arrows for Left Turns    Traffic Control Signals
4-314 Change  NCUTCD  XX  6/30/2006  New Warrant #9 for Signals Near Railroad Grade Crossings    Railroad Grade Crossings| Traffic Control Signals| Warrants
4-313 Change  NCUTCD  XX  6/30/2006  Revisions to Pedestrian Volume Warrant #4    Pedestrians| Traffic Control Signals| Warrants
4-312 Experiment  City of Coquille  OR  7/7/2006  Flashing Red Stop Line Lights  Active  In-Roadway Warning Lights
4-311 Interpretation  Signal Equipment Company (SECO)  LA  7/28/2006  Strobe Lights for Flashing Beacons    Beacons
4-310 Change  Bernalillo County  NM  6/5/2006  Speed for Signal Warrants    Traffic Control Signals| Warrants
4-309 Experiment  City of Tempe  AZ  4/27/2006  Pedestrian Hybrid Beacon (HAWK)  Inactive  Beacons| Pedestrian Signals| Pedestrians
4-308 Experiment  City of Everett  WA  3/16/2006  Flashing Yellow Arrow for Right Turn (denied)  Inactive  Traffic Control Signals
4-307 Change  NCUTCD  XX  1/20/2006  Revisions to Walking Speeds for Pedestrian Signal Timing    Pedestrian Signals| Pedestrians
4-306 Change  NCUTCD  XX  1/20/2006  Additional Alternative to Traffic Signal Control    Traffic Control Signals| Warrants
4-305 Experiment  Florida DOT  FL  1/17/2006  Rectangular Rapid Flashing Beacons (RRFB)  Inactive  Beacons| Pedestrians
4-304 Experiment  City of Tucson  AZ  1/11/2006  Pedestrian Hybrid Beacon (HAWK)  Inactive  Beacons| Pedestrian Signals| Pedestrians
4-303 Interpretation  B L Companies  CT  11/16/2005  Overlaid Pedestrian Signal Symbols    Pedestrian Signals| Pedestrians| Symbols
4-302 Interpretation  Carmanah Technologies (Canada)  XX  12/19/2005  Flashing Beacons and ITE's Vehicle Traffic Control Signal Heads Specifications    Beacons| Traffic Control Signals
4-301 Experiment  City of Pasadena  CA  11/29/2005  In-Roadway Lights for Pedestrian Delineation  Active  In-Roadway Warning Lights| Pedestrian Signals| Pedestrians
4-300 Interpretation  Carmanah Technologies (Canada)  XX  11/21/2005  Flashing Beacons and ITE's Vehicle Traffic Control Signal Heads Specifications    Beacons| Traffic Control Signals
4-299 Experiment  Florida DOT  FL  10/5/2005  Rectangular Rapid Flashing Beacons (RRFB) (denied)  Denied  Beacons| Pedestrians
4-298 Experiment  City of Portland  OR  10/4/2005  Pedestrian Hybrid Beacon (HAWK) and Bike Signal Heads  Active  Beacons| Bikes| Pedestrians| Symbols| Traffic Control Signals
4-297 Interpretation  North Carolina DOT  NC  10/3/2005  Number of Signal Faces for Through Movements    Traffic Control Signals
4-296 Experiment  Maryland State Highway Administration  MD  8/31/2005  Part-Time Signal at Location Not Meeting Warrants  Active  Traffic Control Signals| Warrants
4-295 Experiment  City of Houston Metrorail  TX  9/20/2005  Red LED Backplate Border and Red Stop Line Lights  Active  In-Roadway Warning Lights| Light Rail Transit Traffic Control Devices| Traffic Control Signals
4-294 Interpretation  Georgia DOT  GA  9/28/2005  Ramp Metering Signals for Staggered Release of Two or More Lanes    Signals - Lane-Use; Ramp Control; Movable Bridge
4-293 Interpretation  Snohomish County  WA  7/28/2005  Accessible Pedestrian Signal Pushbutton Locations    Pedestrian Signals| Pedestrians
4-292 Change  NCUTCD  XX  6/24/2005  Emergency Vehicle Hybrid Beacons    Beacons
4-291 Change  NCUTCD  XX  6/24/2005  Accessible Pedestrian Signals Revisions - Extended Pushbutton Press Features    Pedestrian Signals| Pedestrians
4-290 Experiment  Texas DOT for Harris County Metro  TX  5/31/2005  In-Roadway Red Flashing Lights at Highway-Light Rail Transit Grade Crossings  Active  In-Roadway Warning Lights| Light Rail Transit Traffic Control Devices
4-289 Experiment  Idaho Transportation Department  ID  2/15/2005  Red In-Roadway Warning Lights at RR Crossing  Inactive  In-Roadway Warning Lights| Railroad Grade Crossings
4-288 Interpretation  FHWA SD Division Office  SD  4/18/2005  Temporary Signal versus Seasonal Shutdown    Traffic Control Signals
4-287 Change  NCUTCD  XX  1/10/2005  Definition of Intersection and Revised Meanings of Vehicular Signal Indications    General| Traffic Control Signals
4-286 Interpretation  Colorado DOT  CO  12/23/2004  Use of Red Arrow in 5-Section Separate Signal Face for Variable Mode of Left Turn    Traffic Control Signals
4-285 Interpretation  Burlington County  NJ  10/26/2004  Pedestrian Activation of Signal Operation    Pedestrian Signals| Pedestrians| Traffic Control Signals
4-284 Experiment  Michigan DOT  MI  10/8/2004  Pedestrian Countdown through Yellow Interval (denied)  Denied  Pedestrian Signals| Pedestrians
4-283 Change  Traffic Court Judge  MI  9/15/2004  Meaning of Steady Yellow Signal Indication    Traffic Control Signals
4-282 Change  NCUTCD  XX  6/24/2004  Accessible Pedestrian Pushbutton Locations - Revisions    Pedestrian Signals| Pedestrians
4-281 Change  NCUTCD  XX  6/24/2004  Pedestrian Pushbutton Locations - Revisions    Pedestrian Signals| Pedestrians
4-280 Change  NCUTCD  XX  6/24/2004  Yellow Change and Red Clearance Intervals - Engineering Practices    Traffic Control Signals
4-279 Change  NCUTCD  XX  6/24/2004  Prohibited Signal Indications - Revisions    Traffic Control Signals
4-278 Experiment  City of Del Mar  CA  9/9/2004  U-Turn Signal Arrow  Inactive  Symbols| Traffic Control Signals
4-277 Change  NCUTCD  XX  1/9/2004  Flashing Mode for Signals Warranted by Peak Hour Warrant    Traffic Control Signals| Warrants
4-276 Change  NCUTCD  XX  6/13/2003  Flicker Pulse Rate of In-Roadway Warning Lights at Crosswalks – Revised Text    In-Roadway Warning Lights| Pedestrians
4-275 Change  NCUTCD  XX  6/13/2003  Speech Messages with Accessible Pedestrian Signal Pushbuttons    Pedestrian Signals| Pedestrians
4-274 Change  NCUTCD  XX  6/13/2003  Speech Messages with Accessible Pedestrian Signals    Pedestrian Signals| Pedestrians
4-273 Change  NCUTCD  XX  6/13/2003  Retroreflective Backplate Border    Traffic Control Signals
4-272 Change  NCUTCD  XX  6/13/2003  U-Turn Arrow Signal Indications    Traffic Control Signals
4-271 Change  NCUTCD  XX  6/13/2003  Common Distinctive Indication for Emergency Vehicles    Traffic Control Signals
4-270 Change  NCUTCD  XX  6/13/2003  Continuously-Illuminated Right-Turn Green Arrow in a Separate Single-Section Signal Face    Traffic Control Signals
4-269 Interpretation  Carmanah Technologies (Canada)  XX  5/20/2004  Pedestrian Activation of Warning Beacons    Beacons| Pedestrians
4-268 Experiment  City of Alexandria  VA  12/16/2003  Pedestrian Countdown Signals without Flashing Orange Hand  Inactive  Pedestrian Signals| Pedestrians| Symbols
4-267 Experiment  City of Mill Creek  WA  10/2/2003  Flashing Yellow Arrow - Alternative Display (denied)  Denied  Traffic Control Signals
4-266 Experiment  City of Barstow  CA  9/29/2003  Pedestrian Countdown Signals  Inactive  Pedestrian Signals| Pedestrians
4-265 Experiment  Florida DOT  FL  8/1/2003  Flashing In-Roadway Warning Lights on Edge Lines for Speed Reduction  Final Report Received  In-Roadway Warning Lights
4-264 Experiment  City of Lincoln  NE  6/24/2003  Pedestrian Countdown Signals  Inactive  Pedestrian Signals| Pedestrians
4-263 Interpretation  Florida DOT  FL  6/10/2003  Strobes    Traffic Control Signals
4-262 Interpretation  Wisconsin DOT  WI  5/23/2003  Protected-Permissive Mode Right-Turn Display for A Right Turn Lane Channelized by an Island    Traffic Control Signals
4-261 Experiment  City of Beaverton  OR  3/24/2003  Pedestrian Countdown Signals  Inactive  Pedestrian Signals| Pedestrians
4-260 Experiment  City of Bend  OR  4/2/2003  Pedestrian Countdown Signals  Inactive  Pedestrian Signals| Pedestrians
4-259 Experiment  Washoe County  NV  4/2/2003  Pedestrian Countdown Signals  Inactive  Pedestrian Signals| Pedestrians
4-258 Experiment  Washington County  OR  2/24/2003  Pedestrian Countdown Signals  Inactive  Pedestrian Signals| Pedestrians
4-257 Experiment  Town of Leesburg  VA  2/20/2003  Pedestrian Countdown Signals  Inactive  Pedestrian Signals| Pedestrians
4-256 Experiment  City of Ontario  OR  2/6/2003  Pedestrian Countdown Signals  Inactive  Pedestrian Signals| Pedestrians
4-255 Interpretation  City of Omaha  NE  2/10/2003  Continuous Vertical Green Arrow Display    Traffic Control Signals
4-254 Experiment  City of Joplin  MO  1/15/2003  Pedestrian Countdown Signals  Inactive  Pedestrian Signals| Pedestrians
4-253 Experiment  Virginia DOT  VA  1/3/2003  Pedestrian Countdown Signals  Inactive  Pedestrian Signals| Pedestrians
4-252 Experiment  City of Newport News  VA  10/28/2002  Pedestrian Countdown Signals  Inactive  Pedestrian Signals| Pedestrians
4-251 Experiment  City of Manassas  VA  10/29/2002  Pedestrian Countdown Signals  Inactive  Pedestrian Signals| Pedestrians
4-250 Experiment  Maryland State Highway Administration  MD  8/23/2002  Pedestrian Countdown Signals  Inactive  Pedestrian Signals| Pedestrians
4-249 Experiment  Oregon DOT  OR  9/3/2002  Pedestrian Countdown Signals  Inactive  Pedestrian Signals| Pedestrians
4-248 Experiment  City of San Buenaventura  CA  2/26/2002  Pedestrian Countdown Signals  Inactive  Pedestrian Signals| Pedestrians
4-247 Interpretation  Citizen  CT  2/9/2002  Six-section signal face    Traffic Control Signals
4-246 Interpretation  Citizen  NY  11/13/2001  Flashing Green Vehicular Signal Countdown Display    Traffic Control Signals
4-245 Experiment  Northern VA Regional Park Authority  VA  10/25/2001  Pedestrian Countdown Signals  Inactive  Pedestrian Signals| Pedestrians
4-244 Experiment  Florida DOT  FL  12/3/2001  Pedestrian Countdown Signals  Inactive  Pedestrian Signals| Pedestrians
4-243 Experiment  Pennsylvania DOT  PA  12/2/2001  Pedestrian Countdown Signals  Inactive  Pedestrian Signals| Pedestrians
4-242 Interpretation  City of San Antonio  TX  9/24/2001  Lane-Use Control Signal for Nonreversible Lane    Signals - Lane-Use; Ramp Control; Movable Bridge| Signs| Signs - Regulatory; Barricades; Gates
4-241 Experiment  North Dakota DOT  ND  11/27/2001  Pedestrian Countdown Signals  Inactive  Pedestrians| Traffic Control Signals
4-240 Interpretation  Citizen  AL  11/26/2001  Numerical Vehicular Signal Countdown Display    Traffic Control Signals
4-239 Experiment  Michigan DOT  MI  10/25/2001  In-Roadway Warning Lights and Raisable Barriers at Grade Crossings  Active  In-Roadway Warning Lights| Railroad Grade Crossings
4-238 Experiment  City of Paramount  CA  9/14/2001  In-Roadway Warning Lights for Highway-Rail Grade Crossings   Active  In-Roadway Warning Lights| Railroad Grade Crossings
4-237 Experiment  Kern County  CA  9/14/2001  In-Roadway Warning Lights for Highway-Rail Grade Crossings   Active  In-Roadway Warning Lights| Railroad Grade Crossings
4-236 Experiment  Missouri DOT  MO  10/3/2001  Pedestrian Countdown Signals  Inactive  Pedestrian Signals| Pedestrians
4-235 Interpretation  BL Companies  CT  9/13/2001  56 Percent Volume Level for Warrant 1    Traffic Control Signals| Warrants
4-234 Interpretation  Missouri DOT  MO  9/12/2001  Permissive Only Mode Dallas Displays    Traffic Control Signals
4-233 Experiment  Douglas County  NV  8/20/2001  Pedestrian Countdown Signals  Inactive  Pedestrian Signals| Pedestrians
4-232 Experiment  City of Oakland  CA  8/6/2001  Pedestrian Countdown Signals  Inactive  Pedestrian Signals| Pedestrians
4-231 Interpretation  California Public Utilities Commission  CA  7/21/2001  Size of Backplate on Flashing Light Signals at Grade Crossings    Light Rail Transit Traffic Control Devices| Railroad Grade Crossings| Traffic Control Signals
4-230 Interpretation  North Carolina DOT  NC  5/29/2001  Right Turn on Red Arrow    Signs| Signs - Regulatory; Barricades; Gates| Traffic Control Signals
4-229 Interpretation  Brudis & Associates, Inc.  MD  5/24/2001  56 Percent Volume Level for Crash Warrant    Traffic Control Signals| Warrants
4-228 Interpretation  Parsons Brinckerhoff  NJ  5/2/2001  All Red Priority Hold in Light Rail Transit Preemption    Light Rail Transit Traffic Control Devices| Traffic Control Signals
4-227 Experiment  City of Monrovia  CA  4/9/2001  E-LITE Emergency Vehicle Warning Display (denied)  Denied  Signs| Signs - Changeable Message | Signs - Warning; Object Markers| Traffic Control Signals
4-226 Experiment  City of Savannah  GA  4/19/2001  Pedestrian Countdown Signals  Inactive  Pedestrian Signals| Pedestrians
4-225 Change  City of Grand Junction  CO  3/27/2001  Clarified Definition of Separate Left-Turn Signal Face    Traffic Control Signals
4-224 Change  Citizen  VA  3/18/2001  Yellow Change and Red Clearance Intervals    Traffic Control Signals
4-223 Experiment  Village of Deerfield  IL  2/7/2001  Pedestrian Countdown Signals (denied)  Denied  Pedestrian Signals| Pedestrians
4-222 Experiment  Lake County  IL  5/4/2001  Pedestrian Countdown Signals (denied)  Denied  Pedestrian Signals| Pedestrians
4-221 Interpretation  City of Fort Collins  CO  2/27/2001  In-Roadway Warning Lights Near Yield Signs at Roundabouts    In-Roadway Warning Lights| Roundabouts and Circular Intersections
4-220 Experiment  City of San Francisco  CA  12/8/2000  Pedestrian Countdown Signals  Inactive  Pedestrian Signals| Pedestrians
4-219 Experiment  Multiple Cities, Counties, and States  XX  5/16/2001  Flashing Yellow Arrow  Inactive  Traffic Control Signals
4-196 Experiment  City of Fountain Valley  CA  12/7/2001  Pedestrian Countdown Signals  Inactive  Pedestrian Signals| Pedestrians
4-195 Change  Citizen  MN  11/7/2000  N-Vue Safety Signal Light    Traffic Control Signals
4-194 Experiment  City of Cheyenne  WY  10/19/2000  Unilight Single-Section 3-Color Traffic Signal (denied)  Denied  Symbols| Traffic Control Signals
4-187 Experiment  Minnesota DOT  MN  10/25/2000  Pedestrian Countdown Signals  Inactive  Pedestrian Signals| Pedestrians
4-186 Experiment  Washington State DOT  WA  7/21/2000  Overhead Animated LED Eyes Warning Display at Unsignalized Crosswalk  Final Report Received  Signs| Signs - Changeable Message | Signs - Warning; Object Markers| Symbols
4-185 Experiment  City of Ann Arbor  MI  6/15/2000  Accessible Pedestrian Signals  Inactive  Pedestrian Signals| Pedestrians
4-184 Experiment  City of Birmingham  MI  4/18/2000  In-Roadway Warning Lights at Crosswalk (denied)  Denied  In-Roadway Warning Lights| Pedestrians
4-183 Experiment  City of Chicago  IL  3/3/2000  Pedestrian Countdown Signals  Final Report Received  Pedestrian Signals| Pedestrians
4-182 Experiment  City of Williamsburg  VA  3/15/2000  Pedestrian Countdown Signals  Inactive  Pedestrian Signals| Pedestrians
4-181 Interpretation  Citizen  OH  3/23/2000  Go Box Signal Preemptor Device    Traffic Control Signals
4-180 Experiment  City of DeKalb  IL  3/2/2000  In-Roadway Warning Lights at Crosswalk (denied)  Denied  In-Roadway Warning Lights| Pedestrians
4-179 Experiment  City of Sammamish  WA  2/24/2000  In-Roadway Warning Lights at Crosswalk (denied)  Denied  In-Roadway Warning Lights| Pedestrians
4-178 Experiment  Union County  NJ  2/18/2000  In-Roadway Warning Lights at Crosswalk  Inactive  In-Roadway Warning Lights| Pedestrians
4-177 Experiment  City of Olympia  WA  2/15/2000  In-Roadway Warning Lights at Crosswalk  Inactive  In-Roadway Warning Lights| Pedestrians
4-176 Experiment  City of Norfolk  VA  2/9/2000  Pedestrian Countdown Signals (denied)  Denied  Pedestrian Signals| Pedestrians
4-175 Experiment  Hawaii DOT  HI  1/25/2000  In-Roadway Warning Lights at Crosswalk  Inactive  In-Roadway Warning Lights| Pedestrians
4-174 Change  Citizen  WA  12/4/1998  Wheelchair-Activated Pedestrian Detectors    Pedestrian Signals| Pedestrians
4-173 Experiment  City of Bellevue  WA  1/24/2000  In-Roadway Warning Lights at Crosswalk  Inactive  In-Roadway Warning Lights| Pedestrians
4-172 Experiment  Snohomish County  WA  1/11/2000  LED-Enhanced Pedestrian Crossing Warning Sign at Crosswalk with In-Roadway Warning Lights  Inactive  In-Roadway Warning Lights| Pedestrians| Signs| Signs - Warning; Object Markers
4-171 Experiment  City of Redmond  WA  12/21/1999  In-Roadway Warning Lights at Crosswalk (denied)  Denied  In-Roadway Warning Lights| Pedestrians
4-170 Change  Citizen  TX  11/23/1999  Displays for Left-Turn Signal Control    Traffic Control Signals
4-169 Experiment  Florida DOT  FL  8/9/2000  In-Roadway Warning Lights at Crosswalk  Inactive  In-Roadway Warning Lights| Pedestrians
4-168 Experiment  Missouri DOT  MO  8/2/2000  Pedestrian Countdown Signals (also see Official Ruling 4-167)  Inactive  Pedestrian Signals| Pedestrians
4-167 Experiment  City of Lake Forest  IL  11/10/1999  Pedestrian Countdown Signals (the correspondence calls this Official Ruling 4-168)  Inactive  Pedestrian Signals| Pedestrians
4-166 Experiment  Snohomish County  WA  10/7/1999  In-Roadway Warning Lights at Crosswalk  Inactive  In-Roadway Warning Lights| Pedestrians
4-165 Experiment  Washington State DOT  WA  9/27/1999  In-Roadway Warning Lights at Crosswalk  Inactive  In-Roadway Warning Lights| Pedestrians
4-164 Experiment  City of Reno  NV  9/9/1999  In-Roadway Warning Lights at Crosswalk (denied)  Denied  In-Roadway Warning Lights| Pedestrians
4-163 Interpretation  City of Knoxville  TN  3/8/1999  Colors of Flashing Indications During Flashing Operation of a Traffic Signal    Traffic Control Signals
4-162 Interpretation  Los Angeles County  CA  3/26/1999  Avoidance of Prolonged All-Red in Preemption and Priority Sequences    Traffic Control Signals
4-161 Change  Right of Way, Inc.  FL  3/26/1999  Emergency-Vehicle Hybrid Beacon    Beacons
4-160 Experiment  DeKalb County  GA  3/2/1999  Accessible Pedestrian Signals (also see Official Ruling 4-159)  Inactive  Pedestrian Signals| Pedestrians
4-159 Experiment  City of East Lansing  MI  8/22/2000  Accessible Pedestrian Signals (the correspondence calls this Official Ruling 4-160)  Inactive  Pedestrian Signals| Pedestrians
4-151 Experiment  King County  WA  5/20/2000  In-Roadway Warning Lights at Crosswalk (the correspondence calls this Official Ruling 4-138)  Inactive  In-Roadway Warning Lights| Pedestrians
4-150 Experiment  City of Myrtle Beach  SC  9/5/2000  Pedestrian Countdown Signals (the correspondence calls this Official Ruling 4-136)  Inactive  Pedestrian Signals| Pedestrians
4-149 Experiment  City of Boston  MA  3/17/1999  Pedestrian Countdown Signals (the correspondence calls this Official Ruling 4-136)  Inactive  Pedestrian Signals| Pedestrians
4-148 Experiment  Nevada DOT  NV    Pedestrian Countdown Signals (the correspondence calls this Official Ruling 4-134)  Inactive  Pedestrian Signals| Pedestrians
4-147 Experiment  City of Sparks  NV    Pedestrian Countdown Signals (the correspondence calls this Official Ruling 4-134)  Inactive  Pedestrian Signals| Pedestrians
4-146 Experiment  Florida DOT  FL  2/2/1999  Pedestrian Signal with Animated Eyes Display (the correspondence calls this Official Ruling 4-140)  Inactive  Pedestrian Signals| Pedestrians| Signs| Signs - Warning; Object Markers
4-145 Experiment  City of Bellevue  WA  7/19/2000  Pedestrian Signal with Animated Eyes Display (the correspondence calls this Official Ruling 4-140)  Inactive  Pedestrian Signals| Pedestrians| Signs| Signs - Warning; Object Markers
4-144 Experiment  North Carolina DOT  NC  3/4/1998  Use of Yellow Diagonal Arrow Lane-Use Control Signal Indication for Reversible Lane Operation  Inactive  Signals - Lane-Use; Ramp Control; Movable Bridge
4-143 Experiment  City of Los Angeles  CA  12/15/1997  Use of Flashing Yellow Right Arrow Lane-Use Control Signal Indication in Reversible Lane Operation  Inactive  Signals - Lane-Use; Ramp Control; Movable Bridge
4-142 Experiment  Maricopa County  AZ  11/1/1997  Pulsed LED Pedestrian Signal  Inactive  Pedestrian Signals| Pedestrians
4-141 Interpretation  Barakos-Landino, Inc.  CT  4/21/1997  Two Section Signal Face for Emergency-Vehicle Signal    Traffic Control Signals
4-140 Experiment  City of Ann Arbor  MI  2/3/1999  Pedestrian Signal with Animated Eyes Display (also see Official Rulings 4-145 and 4-146)  Inactive  Pedestrian Signals| Pedestrians| Signs| Signs - Warning; Object Markers
4-139 Interpretation  Port of Long Beach  CA  1/17/1997  Passenger Car Equivalent in Signal Warrants    Traffic Control Signals| Warrants
4-138 Experiment  City of Santa Rosa  CA  12/4/1996  In-Roadway Warning Lights at Crosswalk (also see Official Ruling 4-151)  Inactive  In-Roadway Warning Lights| Pedestrians
4-137 Interpretation  Oregon DOT  OR  5/20/1996  Conditions Justifying Shortening or Omission of Pedestrian Clearance Time in Railroad Preemption    Pedestrian Signals| Railroad Grade Crossings| Traffic Control Signals
4-136 Experiment  City of Hampton  VA  4/8/1996  Pedestrian Countdown Signals (also see Official Rulings 4-149 and 4-150)  Inactive  Pedestrian Signals| Pedestrians
4-135 Interpretation  FHWA NY Division Office  NY  3/28/1996  Use of LEDs in Non-MUTCD Colors    Traffic Control Signals
4-134 Experiment  City of State College  PA  12/1/1995  Pedestrian Countdown Signals (also see Official Rulings 4-147 and 4-148)  Inactive  Pedestrian Signals| Pedestrians
4-133 Change  Citizens  VT  11/20/1995  Audible (Accessible) Pedestrian Signals and Other Devices for Visually Disabled Pedestrians    Pedestrian Signals| Pedestrians
4-131 Experiment  Delaware DOT  DE  1/17/1995  Flashing Green Signal Display to Indicate Proceed With Caution  Inactive  Traffic Control Signals
4-130 Change  John Meyer Consulting  XX  12/2/1994  Crash Experience Warrant    Traffic Control Signals| Warrants
4-129 Interpretation  FHWA Region 5  XX  3/17/1994  Solar Powered Flashing LEDs on Stop, Yield, and Chevron Signs    Beacons| General| Signs| Signs - Regulatory; Barricades; Gates| Signs - Warning; Object Markers
4-128 Experiment  Maryland State Highway Administration  MD  8/26/1994  Queue Jumping Signal for Transit Buses    Light Rail Transit Traffic Control Devices| Traffic Control Signals
4-127 Change  City of Philadelphia  PA  7/12/1994  Warrant for Transit Vehicle Volume    Traffic Control Signals| Warrants
4-126 Experiment  Texas DOT  TX  6/9/1994  Use of Steady and Flashing Yellow Arrows in Lane-Use Control Signals  Final Report Received  Signals - Lane-Use; Ramp Control; Movable Bridge
4-125 Change  South Carolina DOT  SC  3/30/1994  Size of Signal Lenses    Traffic Control Signals
4-124 Change  City of San Buenaventura  CA  2/18/1994  Educational Plaque for Pedestrian Signals    Pedestrian Signals| Pedestrians| Signs| Signs - Regulatory; Barricades; Gates
4-123 Interpretation  New Jersey DOT  NJ  9/15/1993  Use of Left-Turn Green Arrow for Split-Phase Operation    Traffic Control Signals
4-122 Change  Citizen  CA  9/24/1993  Special Pedestrian Pushbuttons for Disabled    Pedestrian Signals| Pedestrians
4-121 Interpretation  Texas DOT  TX  7/29/1993  Dallas Phasing Is Allowed    Traffic Control Signals
4-120 Experiment  North Carolina DOT  NC  7/23/1992  Red LED Signal Indications  Inactive  Traffic Control Signals
4-119 Experiment  City of Oneonta  NY  7/24/1992  Modulating Dual-Filament Traffic Signal Lamps  Inactive  Traffic Control Signals
4-118 Change  NCUTCD  XX  2/28/1992  Relocate Warrants Chapter    Traffic Control Signals| Warrants
4-117 Interpretation  City of Murfreesboro  TN  1/27/1992  Abbreviated Pedestrian Clearance Interval    Pedestrian Signals| Pedestrians| Traffic Control Signals
4-116 Experiment  Arizona DOT  AZ  8/12/1991  Use of Steady and Flashing Yellow Arrows in Lane-Use Control Signals  Inactive  Signals - Lane-Use; Ramp Control; Movable Bridge
4-115 Interpretation  John Meyer Consulting  NY  8/9/1991  Combination of Warrants    Traffic Control Signals| Warrants
4-114 Change  International Solar Control Systems, Inc.  FL  10/26/1990  Fire and Rescue Station Warning Light System (Emergency-Vehicle Hybrid Beacon)    Beacons
4-113 Interpretation  Maguire Group  CT  1/26/1990  Termination of Right Turn Green Arrow When Followed by a Permissive Indication    Traffic Control Signals
4-112 Change  City of Baton Rouge  LA  10/17/1989  Two-Color Signal Backplates (Yellow on Outer Half)    Traffic Control Signals
4-111 Change  Indicator Controls Corporation  CA  6/19/1989  Outline Style Symbolic Pedestrian Signal Indications    Pedestrian Signals| Pedestrians
4-110 Interpretation  Weber Associates  CA  5/23/1989  Definition of "Other Signalized Area" in Relation to Number and Location of Signal Faces    Traffic Control Signals
4-109 Experiment  Monroe County  NY  3/22/1989  No Turn on Red Sign with Symbolic Red Ball and "When Pedestrians Are Present" Plaque (denied)  Denied  Signs| Signs - Regulatory; Barricades; Gates| Traffic Control Signals
4-108 Interpretation  Town of Milford  MA  2/3/1989  Warrants for Signalized Mid-Block Crosswalks    Pedestrians| Traffic Control Signals| Warrants
4-107 Interpretation  Missouri DOT  MO  12/14/1988  Display Requirements for Protected-Permissive Left Turns    Traffic Control Signals
4-100 Change  NCUTCD  XX  6/9/1988  Number of Signal Faces for Through Movements    Traffic Control Signals
4-96 Change  NCUTCD  XX  6/9/1988  Duration of Yellow Change Interval in Actuated Operation    Traffic Control Signals
4-95 Change  U.S. Department of the Army  XX  6/15/1988  Use of STOP Sign with Flashing Red Intersection Control Beacon    Beacons| Signs| Signs - Regulatory; Barricades; Gates
4-94 Interpretation  City of Rockford  IL  1/12/1988  Two-Section Red and Yellow School Crossing Signal    School Areas| Traffic Control Signals
4-93 Change  FHWA  XX  3/10/1988  Delete Text on Exclusive Function of Steady Yellow Interval    Traffic Control Signals
4-92 Change  NCUTCD  XX    Provisions for Pedestrians    Pedestrian Signals| Pedestrians| Traffic Control Signals
4-91 Change  NCUTCD  XX  7/2/1988  Signal Preemption    Traffic Control Signals
4-90 Change  California DOT  CA  9/2/1987  Mounting Height of Post-Mounted Signal Face    Traffic Control Signals
4-89 Change  NCUTCD  XX    Re-write of Section 4B-1 of 1978 MUTCD    Traffic Control Signals
4-88 Interpretation  California DOT  CA  7/20/1987  Required Lateral Separation of Signal Faces    Traffic Control Signals
4-87 Change  NCUTCD  XX  3/21/1987  Left on Arrow Only Sign    Signs| Signs - Regulatory; Barricades; Gates| Traffic Control Signals
4-86 Change  NCUTCD  XX  2/10/1987  Combination of Warrants    Traffic Control Signals| Warrants
4-85 Change  NCUTCD  XX  2/10/1987  Revision to Systems Warrant (now called Roadway Network Warrant)    Traffic Control Signals| Warrants
4-84 Change  Citizen  CT  4/21/1987  Power Failure Responsive STOP Sign That Unfolds from Signal Face (also see Official Ruling 2-153)    Traffic Control Signals
4-83 Experiment  Delaware DOT  DE  4/24/1987  Substandard Mounting Height of Portable Traffic Signal Heads (denied)  Denied  Traffic Control Signals
4-82 Experiment  Texas DOT  TX  4/17/1987  Portable Traffic Signal Heads with Low-Wattage Bulbs Not Meeting ITE Specifications (withdrawn)  Denied  Traffic Control Signals
4-81 Change  FHWA  XX    Maximum Distance from Stop Line to Nearest Signal Face    Traffic Control Signals
4-80 Interpretation  City of Nashville  TN  7/29/1986  Left Turn Signal Signs (also see Official Ruling 2-134)    Signs| Signs - Regulatory; Barricades; Gates| Traffic Control Signals
4-79 Change  California DOT  CA  10/22/1986  Ramp Metering Signals - 2 and 3 Section Faces    Signals - Lane-Use; Ramp Control; Movable Bridge
4-78 Change  California DOT  CA  10/22/1986  Mounting Height Requirement for Signal Heads and Beacons    Beacons| Traffic Control Signals
4-77 Change  California DOT  CA  10/22/1986  Intersection Control Beacon Illustration - Figure 4-4 of 1978 MUTCD    Beacons
4-76 Change  California DOT  CA  10/22/1986  Color of Signal Head Housings    Traffic Control Signals
4-75 Change  California DOT  CA  10/22/1986  Mounting Height of Vehicle Signal Faces    Pedestrian Signals| Pedestrians| Traffic Control Signals
4-74 Change  California DOT  CA  10/22/1986  12-Inch Lenses at Rural Intersections    Traffic Control Signals
4-73 Change  NCUTCD  XX  2/6/1986  Elimination of the "Blind" Change Interval Following a Green Arrow    Traffic Control Signals
4-72 Change  Consultant  FL  2/3/1986  Left on Arrow Only Sign    Signs| Signs - Regulatory; Barricades; Gates| Traffic Control Signals
4-71 Change  NCUTCD  XX  2/6/1986  Red Clearance Interval    Traffic Control Signals
4-70 Experiment  Michigan DOT  MI  6/7/1985  Flashing Circular Red for Permissive/Protected Left-Turn Phasing  Inactive  Traffic Control Signals
4-69 Interpretation  Unknown  XX    Pedestrian Signals at T-Intersections with Little or No Pedestrian Activity    Pedestrian Signals| Pedestrians| Traffic Control Signals
4-68 Change  NCUTCD  XX  7/23/1983  Effect of Right Turn on Red on Volume Warrants    Traffic Control Signals| Warrants
4-67 Change  NCUTCD  XX  1/27/1983  Crash Experience Warrant – Property Damage    Traffic Control Signals| Warrants
4-66 Change  NCUTCD  XX  6/24/1984  Satisfaction of Signal Warrant Is Not a Mandate for a Signal Installation    Traffic Control Signals| Warrants
4-65 Interpretation  Citizen  XX  4/12/1985  Determining Number of Approach Lanes for Signal Warrants Evaluation    Traffic Control Signals| Warrants
4-64 Interpretation  Louisiana DOT  LA  4/12/1985  Mandatory Use of Steady Green Left Turn Arrow for Protected Turn    Traffic Control Signals
4-63 Interpretation  City of Tacoma  WA  7/5/1984  Signal Sequencing Prior to Conflict Flash    Traffic Control Signals
4-62 Change  Alabama DOT  AL    Eliminate Requirement for Cable Interconnect of Lane-Use Control Signal Systems    Signals - Lane-Use; Ramp Control; Movable Bridge
4-61 Change  NCUTCD  XX  12/1/1984  Number of Lenses Per Pedestrian Signal Face    Pedestrian Signals| Pedestrians
4-60 Change  Texas DOT  TX  1/9/1986  Revised Pedestrian Volume Warrant    Pedestrians| Traffic Control Signals| Warrants
4-59 Change  City of Milwaukee  WI  5/1/1984  Eliminate Flashing Walk Indication    Pedestrian Signals| Pedestrians
4-58 Change  NCUTCD  XX  5/3/1984  Require Yellow Arrow for Change Interval Display Following Green Arrow; Allow Flashing of Arrow Indications; Revised Provisions for Modes of Left-Turn Signal Operation and for Transitions to and from Flashing Operation (also see Official Ruling 2-162)    Traffic Control Signals
4-57 Experiment  City of Hatboro  PA  4/24/1984  Wireless Interconnection of Lane-Use Control Signals  Inactive  Signals - Lane-Use; Ramp Control; Movable Bridge
4-56 Change  NCUTCD  XX    Modification of Pedestrian Signal Face Indication    Pedestrian Signals| Pedestrians
4-55 Change  NCUTCD  XX  9/30/1983  Traffic Signal Display for Left Turn Phasing    Traffic Control Signals
4-54 Experiment  City of Kingsport  TN  12/9/1983  Strobes  Inactive  Traffic Control Signals
4-53 Change  Minnesota DOT  MN  10/7/1983  Senior Citizen and Handicapped Pedestrian Signal Warrants    Pedestrian Signals| Pedestrians| Traffic Control Signals| Warrants
4-52 Change  City of San Francisco  CA  7/28/1983  Median Width Criteria for Pedestrian Signal Timing Purposes    Pedestrian Signals| Pedestrians| Warrants
4-51 Interpretation  Vermont Agency of Transportation  VT  5/13/1983  Use of Circular Green for Control of a Left Turn Lane    Traffic Control Signals
4-50 Change  Michigan DOT  MI  5/9/1983  Flashing Circular Red for Permissive/Protected Left-Turn Phasing    Traffic Control Signals
4-49 Change  City of Cincinnati  OH  12/14/1982  Turn Signal Signs    Signs| Signs - Regulatory; Barricades; Gates| Traffic Control Signals
4-48 Change  City of Milwaukee  WI  11/29/1982  Size Requirements for Pedestrian Signals    Pedestrian Signals| Pedestrians
4-47 Change  Minnesota DOT and Texas DOT  MN  8/25/1982  Use of Steady and Flashing Yellow Arrows in Lane-Use Control Signals and Darkening of Lane-Use Control Signals on Freeways    Signals - Lane-Use; Ramp Control; Movable Bridge| Symbols
4-46 Interpretation  City of North Little Rock  AR  8/18/1982  Simultaneous Display of Circular Red and Green Arrow for Protected-Permissive Left Turns    Traffic Control Signals
4-45 Change  City of West Palm Beach  FL  3/1/1982  Use of One Signal Face with Two Red Indications In Lieu of Required Two Faces for Stem of T    Traffic Control Signals
4-44 Change  City of West Palm Beach  FL  3/1/1982  Use of R3-5 Lane-Use Control Sign In Lieu of R10-10 Left Turn Signal Sign    Signs| Signs - Regulatory; Barricades; Gates| Traffic Control Signals
4-43 Change  NCUTCD  XX  3/1/1982  Four-Hour Volume Warrant    Traffic Control Signals| Warrants
4-42 Change  NCUTCD  XX  3/1/1982  Traffic Signal Design Configurations    Traffic Control Signals
4-41 Interpretation  City of Miami  FL  8/13/1981  Traffic Signal Display at T-Intersections    Traffic Control Signals
4-40 Change  City of Tucson  AZ  12/11/1981  Shortening of Pedestrian Change Interval During Emergency Preemptions    Pedestrian Signals| Pedestrians| Railroad Grade Crossings| Traffic Control Signals
4-39 Change  Arizona DOT  AZ  10/21/1981  "DON'T ENTER" Indication for Pedestrian Change Interval    Pedestrian Signals| Pedestrians
4-38 Change  Tennessee DOT  TN  9/30/1981  Bicycle Volume in Advance Engineering Data    Traffic Control Signals| Warrants
4-37 Experiment  Cities of Everett and Tumwater  WA  6/10/1981  Flashing Circular Yellow for Protected-Permissive Left-Turns  Inactive  Traffic Control Signals
4-36 Experiment  City of Mill Creek  PA  8/11/1981  Traffic Control During Power Failures - "Guardian" System    Traffic Control Signals
4-35 Interpretation  Miami-Dade County  FL  3/17/1981  Pedestrian Clearance Time Calculation May Include Yellow Interval    Pedestrian Signals| Pedestrians| Traffic Control Signals
4-34 Change  Maryland State Highway Administration  MD  6/1/1981  Flashing of All Signal Faces on an Approach    Traffic Control Signals
4-33 Change  FHWA  XX  3/1/1981  Use of Markings with Lane-Use Control Signals for Reversible Lanes    Pavement Markings| Signals - Lane-Use; Ramp Control; Movable Bridge
4-32 Change  Michigan DOT  MI  1/21/1981  Flashing Operation of Newly-Installed Traffic Signals    Traffic Control Signals
4-31 Change  FHWA  XX  3/25/1981  Guidelines for Periodic Darkening of Warning Beacons    Beacons| Signs| Signs - Regulatory; Barricades; Gates| Signs - Warning; Object Markers
4-30 Interpretation  Unknown  XX  2/23/1981  Signal Operation Must Relate to Traffic Flow - Terms Defined    Traffic Control Signals
4-29 Change  FHWA   XX  1/12/1981  Guidelines for Freeway Entrance Ramp Control Signals    Signals - Lane-Use; Ramp Control; Movable Bridge| Warrants
4-28 Experiment  Indiana DOT  IN  1/9/1981  4-Step Flashing Yellow Change Interval  Inactive  Traffic Control Signals
4-27 Change  NCUTCD  XX  11/17/1980  Rules for Phasing and Sequences of Signal Indications    Traffic Control Signals
4-26 Experiment  Maryland State Highway Administration  MD  8/17/1980  Flashing Red Signal Ahead Sign and Flashing Red Strobe Signal  Inactive  Signs| Signs - Changeable Message | Signs - Warning; Object Markers| Traffic Control Signals
4-25 Change  Utah DOT  UT  6/23/1980  School Speed Limit Sign Beacon - Horizontally Aligned    Beacons| Signs| Signs - Regulatory; Barricades; Gates
4-24 Experiment  Pennsylvania DOT  PA  8/28/1980  Signalization of an Isolated Industrial Driveway with High Peak Volumes  Inactive  Traffic Control Signals| Warrants
4-23 Experiment  City of New York  NY  8/5/1980  Modified Pedestrian Signal for Control of Bicycles on Bike Paths  Inactive  Bikes| Pedestrian Signals| Pedestrians
4-22 Change  Private Company  XX  3/27/1980  Single Portable Traffic Light    Temporary Traffic Control Zones| Traffic Control Signals
4-21 Change  Montgomery County  MD  1/30/1980  Maximum Distance from Stop Line to Nearest Signal Face    Traffic Control Signals
4-20 Change  NCUTCD  XX  4/27/1979  Peak Hour Delay and Peak Hour Volume Warrants    Traffic Control Signals| Warrants
4-19 Experiment  Illinois DOT  IL  9/14/1979  Strobe Lights at Railroad Grade Crossings (Sg-68B)  Inactive  Railroad Grade Crossings| Traffic Control Signals
4-18 Change  City of West Hartford  CT  7/17/1979  No Turn on Walk Sign    Pedestrian Signals| Pedestrians| Signs| Signs - Regulatory; Barricades; Gates
4-17 Change  South Carolina DOT  SC  5/28/1979  Flashing Signal Display for Fire Preemption    Traffic Control Signals
4-16 Interpretation  Tennessee DOT  TN  9/13/1978  Signal Display for Exclusive Turn Lane with Protected-Permissive Left-Turn Phasing    Traffic Control Signals
4-15 Change  Montgomery County  MD  2/14/1979  Strobe Light with Red Signal     Traffic Control Signals
4-14 Experiment  Delaware DOT  DE  7/29/1979  Flashing Red Arrows  Inactive  Traffic Control Signals
4-13 Change  City of Madison  WI  1/26/1979  Dual-Indication Circular Signal    Traffic Control Signals
4-12 Experiment  Private Company  XX  4/26/1978  Audible Pedestrian Signal (Sg-109) (denied)  Denied  Pedestrian Signals| Pedestrians
4-11 Change  Citizen  XX    Prohibit Display of Circular Green in a Separate Signal Face for a Left-Turn Lane (Sg-113)    Traffic Control Signals
4-10 Change  Citizen  XX    Prohibit Use of Vertical Green Arrow (Sg-112)    Traffic Control Signals
4-9 Change  Delaware DOT  DE  8/9/1978  Concurrent Display of Steady Red and Flashing Red Facing Median Crossover at Wide Median Intersections (Sg-80)    Traffic Control Signals
4-8 Change  City of Seattle  WA  7/26/1974  Use of Half-Signals at School Crossings (Sg-44)    Pedestrian Signals| Pedestrians| Traffic Control Signals
4-7 Interpretation  Washington State DOT  WA  6/2/1978  No Conflict Between Steady Red Traffic Signal Indications and Flashing Red Railroad Flashing Light Signals (Sg-111)    Railroad Grade Crossings| Traffic Control Signals
4-6 Experiment  California DOT  CA  11/13/1978  Roller Shade Pedestrian Signal Head (Sg-115)  Inactive  Pedestrian Signals| Pedestrians
4-5 Experiment  Minnesota DOT  MN  11/21/1977  Use of Steady and Flashing Yellow Arrows in Lane-Use Control Signals (Sg-100)  Inactive  Signals - Lane-Use; Ramp Control; Movable Bridge| Symbols
4-4 Change  Nassau County  NY  10/12/1977  Non-continuous Use of Emergency-Vehicle Traffic Control Signals (Sg-99)    Traffic Control Signals
4-3 Experiment  Citizen  XX  12/2/1977  Flashing of Green and Red Signal Indications to Signify Time Remaining (Sg-106) (denied)  Denied  Traffic Control Signals
4-2 Interpretation  Montana DOT  MT  1/3/1978  Intersection Control Beacons - Conflicting Displays (Sg-108)    Beacons| Traffic Control Signals
5(09)-3 Change  NCUTCD  XX  1/10/2014  Relocation of Part 5 Provisions to Other Parts    General
5(09)-2 Change  NCUTCD  XX  1/21/2011  Low-Volume Road Grade Crossings    Pavement Markings| Railroad Grade Crossings| Signs| Signs - Regulatory; Barricades; Gates
5(09)-1 Interpretation  Member of NCUTCD  XX  8/13/2010  Minimum Sign Sizes on Low-Volume Roads    Signs
5-13 Change  Member of NCUTCD  XX  11/21/2006  Difference Between Average Annual Daily Traffic and Average Daily Traffic    General
5-12 Change  NCUTCD  XX  1/20/2006  Use of Retroreflective Strips on the Fronts of Crossbuck Supports    Railroad Grade Crossings| Signs| Signs - Regulatory; Barricades; Gates
6(09)-41 Change  NCUTCD  XX  1/6/2017  Color of Tubular Markers    Pavement Markings| Temporary Traffic Control Zones
6(09)-39 Change  NCUTCD  XX  6/10/2016  Site Roadways Open to Public Travel    Temporary Traffic Control Zones
6(09)-38 Experiment  Wisconsin DOT  WI  7/12/2016  Orange Temporary Pavement Markings (Preformed Tape)  Active  Pavement Markings| Temporary Traffic Control Zones
6(09)-37 Interpretation  International Safety Equipment Association (ISEA)  XX  2/26/2016  Use of ANSI/ISEA 107-2015 High-Visibility Safety Apparel    Temporary Traffic Control Zones
6(09)-36 Interpretation  Unipart Dorman (Canada)  XX  7/28/2015  Warning Lights on 36-inch Cones    Temporary Traffic Control Zones
6(09)-34 Experiment  Missouri DOT  MO  3/24/2015  Lane Split Symbol Sign  Active  Signs| Signs - Warning; Object Markers| Symbols| Temporary Traffic Control Zones
6(09)-33 Experiment  Wisconsin DOT  WI  10/20/2014  Orange Temporary Pavement Markings  Active  Pavement Markings| Temporary Traffic Control Zones
6(09)-32 Experiment  Kansas DOT  KS  8/12/2014  Temporary Traffic Signals and Pilot Vehicles  Active  Temporary Traffic Control Zones
6(09)-31 Change  NCUTCD  XX  6/28/2014  New Paragraph for Pedestrian Considerations    Pedestrians| Temporary Traffic Control Zones
6(09)-30 Change  NCUTCD  XX  6/28/2014  Pilot Car Method of Traffic Control    Temporary Traffic Control Zones
6(09)-29 Change  NCUTCD  XX  6/28/2014  Revisions to Typical Application 28    Pedestrians| Temporary Traffic Control Zones
6(09)-28 Change  NCUTCD  XX  6/28/2014  Revisions to Typical Applications 22, 24, and 25    Temporary Traffic Control Zones
6(09)-27 Change  NCUTCD  XX  6/28/2014  Floodlights    Temporary Traffic Control Zones
6(09)-26 Change  NCUTCD  XX  6/28/2014  Temporary Lane Separators    Temporary Traffic Control Zones
6(09)-25 Change  NCUTCD  XX  6/28/2014  General Characteristics of Signs    Signs| Temporary Traffic Control Zones
6(09)-24 Change  NCUTCD  XX  6/28/2014  Revision to Pedestrian Considerations    Pedestrians| Temporary Traffic Control Zones
6(09)-23 Change  NCUTCD  XX  6/28/2013  Revisions to Section 6G.05 and New TAs for Bicyclists    Bikes| Temporary Traffic Control Zones
6(09)-22 Change  NCUTCD  XX  6/28/2013  Revisions to Typical Application 28 - Sidewalk Detour or Diversion    Pedestrians| Temporary Traffic Control Zones
6(09)-21 Experiment  Texas DOT  TX  6/10/2013  Side Road Entering Work Zone Control Device  Active  Signs| Signs - Regulatory; Barricades; Gates| Temporary Traffic Control Zones| Traffic Control Signals
6(09)-20 Experiment  Missouri DOT  MO  10/15/2012  Alternative MERGE Warning Sign Design   Active  Signs| Signs - Warning; Object Markers| Temporary Traffic Control Zones
6(09)-19 Experiment  Texas DOT  TX  1/17/2013  Pilot Vehicles using Temporary Traffic Signals instead of Flaggers  Active  Temporary Traffic Control Zones
6(09)-18 Interpretation  Wisconsin DOT  WI  11/20/2012  Use of a Sequential or Flashing Arrow Board Display on a Portable Changeable Message Sign    Signs| Signs - Changeable Message | Temporary Traffic Control Zones
6(09)-17 Experiment  Ohio DOT  OH  7/17/2012  Single-Lane Crossover Symbol Sign  Active  Signs| Signs - Warning; Object Markers| Symbols| Temporary Traffic Control Zones
6(09)-16 Interpretation  City of Honolulu Police Department  HI  8/9/2012  Use of STOP/SLOW Paddle by Uniformed Law Enforcement Officers    Temporary Traffic Control Zones
6(09)-15 Interpretation  IntelliStrobe Safety Systems  MO  7/20/2012  Clarification of Interpretation 6(09)-5    Temporary Traffic Control Zones
6(09)-14 Interpretation  Impact Recovery Systems  TX  6/20/2012  Shifting vs. Relocating of Temporary Lane Separators     Temporary Traffic Control Zones
6(09)-13 Interpretation  American Traffic Safety Services Association (ATSSA)  XX  3/8/2012  Use of a Circular Sign Substrate for a STOP/SLOW Paddle    Temporary Traffic Control Zones
6(09)-12 Interpretation  International Safety Equipment Association (ISEA)  XX  1/4/2012  Use of ANSI/ISEA 207-2011 High-Visibility Safety Apparel    Temporary Traffic Control Zones
6(09)-11 Interpretation  OTW Safety  UT  12/6/2011  Use of Manufacturers' Names and Company Logos on Channelizing Devices    Temporary Traffic Control Zones
6(09)-10 Change  NCUTCD  XX  6/23/2011  New Section on Pedestrian Channelizing Devices    Pedestrians| Temporary Traffic Control Zones
6(09)-9 Experiment  Florida DOT  FL  6/15/2011  Blue Drums to Identify Business Driveway Locations  Active  Temporary Traffic Control Zones
6(09)-8 Experiment  Texas DOT  TX  5/9/2011  Symbolic Signs for Automated Flagger Assistance Devices  Active  Signs| Signs - Regulatory; Barricades; Gates| Temporary Traffic Control Zones
6(09)-7 Interpretation  Delaware DOT  DE  5/1/2011  Operation of Temporary Traffic Control Signals at Haul Road Crossings    Temporary Traffic Control Zones| Traffic Control Signals
6(09)-6 Experiment  Rhode Island DOT  RI  3/12/2010  Late Merge Symbols for Portable Changeable Message Signs  Active  Signs| Signs - Changeable Message | Signs - Warning; Object Markers| Symbols| Temporary Traffic Control Zones
6(09)-5 Interpretation  John Thomas, Inc.  IL  6/24/2010  Use of Pilot Car with Temporary Traffic Control Signals    Temporary Traffic Control Zones
6(09)-4 Interpretation  International Safety Equipment Association (ISEA)  XX  4/27/2010  Use of ANSI/ISEA 107-2010 High-Visibility Safety Apparel    Temporary Traffic Control Zones
6(09)-3 Interpretation  Qwick Kurb, Inc.  FL  1/12/2010  Non-Cylindrical Tubular Markers    Temporary Traffic Control Zones
6(09)-2 Interpretation  3M Company  MN  2/25/2010  High-Visibility Apparel for Delivery Personnel     Temporary Traffic Control Zones
6(09)-1 Interpretation  MUTCD Consultant Services  MD  2/22/2010  Color of Flagger's Flag    Temporary Traffic Control Zones
6-227 Interpretation  SpinAlert  IN  8/10/2009  Use of the SpinAlert Product    Temporary Traffic Control Zones
6-226 Experiment  Connecticut DOT  CT  6/10/2009  Black Aggregate Cover-Up Resin Pavement Markings  Active  Pavement Markings| Temporary Traffic Control Zones
6-225 Interpretation  California DOT  CA  3/4/2009  Use of ONE LANE ROAD AHEAD (W20-4) Signs    Signs| Signs - Warning; Object Markers| Temporary Traffic Control Zones
6-224 Experiment  Michigan DOT  MI  12/4/2008  Tailgating Dots  Active  Pavement Markings| Signs| Signs - Regulatory; Barricades; Gates| Signs - Warning; Object Markers| Temporary Traffic Control Zones
6-223 Interpretation  American Traffic Safety Services Association (ATSSA)  XX  11/12/2008  Daytime Use of Non-Retroreflective Signs in Temporary Traffic Control Zones    Signs| Temporary Traffic Control Zones
6-221 Interpretation  Citizen  MO  11/10/2007  ROAD CLOSED TO THRU TRAFFIC (R11-4) Sign    Signs| Signs - Regulatory; Barricades; Gates| Temporary Traffic Control Zones
6-220 Experiment  Colorado DOT  CO  9/17/2007  New Sidewalk Closed Sign for Visually Impaired Pedestrians  Inactive  Pedestrians| Signs| Signs - Regulatory; Barricades; Gates| Temporary Traffic Control Zones
6-219 Interpretation  Ohio DOT  OH  7/19/2007  Interim Approval List of Three Automated Flagger Assistance Devices    Temporary Traffic Control Zones
6-218 Change  NCUTCD  XX  6/22/2007  Temporary Traffic Control for Aerial Lift Operations    Temporary Traffic Control Zones
6-217 Change  NCUTCD  XX  1/19/2007  High-Visibility Safety Apparel    Temporary Traffic Control Zones
6-216 Change  NCUTCD  XX  6/22/2007  Use of the Word "Safe" in Part 6 Text    Temporary Traffic Control Zones
6-215 Change  NCUTCD  XX  1/19/2007  Revisions to Portable Changeable Message Sign Provisions    Signs| Signs - Changeable Message | Temporary Traffic Control Zones
6-214 Change  NCUTCD  XX  1/19/2007  Typical Applications for Traffic Incident Management Areas    Temporary Traffic Control Zones
6-213 Change  NCUTCD  XX  1/19/2007  Revisions to Channelizing Device Provisions    Temporary Traffic Control Zones
6-212 Change  NCUTCD  XX  1/19/2007  Clarification of Typical Applications as Standards, Guidance, or Options    Temporary Traffic Control Zones
6-211 Change  NCUTCD  XX  1/20/2006  High-Visibility Safety Apparel    Temporary Traffic Control Zones
6-210 Change  NCUTCD  XX  1/20/2006  Minimum Taper Length    Temporary Traffic Control Zones
6-209 Change  NCUTCD  XX  1/20/2006  National Incident Command System and Light Sticks    Temporary Traffic Control Zones
6-208 Change  NCUTCD  XX  1/20/2006  Sequential Warning Lights on Channelizing Devices    Temporary Traffic Control Zones
6-207 Change  NCUTCD  XX  1/20/2006  Escape Routes at Flagger Stations    Temporary Traffic Control Zones
6-206 Change  Citizen  VA  3/31/2005  Suggestions for Setting and Enforcing Speed Limits in Temporary Traffic Control Zones    Temporary Traffic Control Zones
6-205 Change  Member of Connecticut House of Representatives  CT  3/8/2005  Colors Used on Stop/Slow Paddles by Flaggers in Temporary Traffic Control Zones    Signs| Temporary Traffic Control Zones
6-204 Experiment  Citizen  NY  2/11/2005  Cone Directional Arrow Device  Inactive  Temporary Traffic Control Zones
6-203 Interpretation  Florida DOT  FL  9/17/2004  Use and Design of Merging Tapers for Lane Closures on Multi-Lane Non-Access Highways    Temporary Traffic Control Zones
6-202 Experiment  Kansas DOT  KS  8/27/2004  Pilot Car Wait Time Notification System  Active  Signs| Temporary Traffic Control Zones
6-200 Interpretation  Oregon DOT  OR  12/19/2003  Can Flagger Sign Be Left in Place for Periods of 15 Minutes or Less without Active Flagging?    Signs| Signs - Warning; Object Markers| Temporary Traffic Control Zones
6-199 Experiment  Idaho Transportation Department  ID  10/15/2003  Portable Orange and Black Rumble Strips in Temporary Traffic Control Zones  Active  Temporary Traffic Control Zones
6-198 Interpretation  Virginia DOT  VA  2/17/2004  Buffer Spaces; Downstream Tapers; and Termination Areas    Temporary Traffic Control Zones
6-197 Experiment  Pennsylvania DOT  PA  11/12/2003  Vertical Panel and Drum Wraps Using Green and Yellow Colors to Identify Exit Ramp Locations  Final Report Received  Temporary Traffic Control Zones
6-196 Change  Citizen  MA  10/1/2003  Yellow Instead of Orange for Color on SLOW Side of STOP/SLOW Paddle    Signs| Signs - Warning; Object Markers| Temporary Traffic Control Zones
6-195 Experiment  Alaska DOT  AK  8/1/2003  Automated Flagger Assistance Device (Remote Control Flagman)  Inactive  Temporary Traffic Control Zones
6-194 Interpretation  Qwick Kurb, Inc.  FL  7/31/2003  Longitudinal Channelizing Devices    Temporary Traffic Control Zones
6-193 Experiment  Pennsylvania DOT  PA  6/11/2003  Flashing White LED Light on Warning Signs to Notify Road Users that They Are Approaching an Active Temporary Traffic Control Zone  Active  Beacons| Signs| Temporary Traffic Control Zones
6-192 Experiment  Wisconsin DOT  WI  4/10/2003  Automated Flagger Assistance Device (Remote Control Flagman)  Final Report Received  Temporary Traffic Control Zones
6-191 Interpretation  Virginia DOT  VA  2/14/2003  Number and Placement of Arrow Boards for Lane Closures    Temporary Traffic Control Zones
6-190 Interpretation  Citizen  UT  12/16/2002  Certification Requirements for Traffic Control Supervisors in Temporary Traffic Control Zones    Temporary Traffic Control Zones
6-189 Interpretation  O.T.W. Technologies  CT  5/21/2002  Flagmaster (Audible Horn Installed in Staff of STOP/SLOW Paddle)    Temporary Traffic Control Zones
6-188 Interpretation  Keystone Automation, Inc.  PA  4/30/2002  Automated/Remote Flagger    Temporary Traffic Control Zones
6-187 Experiment  Florida DOT  FL  10/8/2001  "Slow Down My Daddy (Mommy) Works Here" Sign    Signs| Signs - Warning; Object Markers| Temporary Traffic Control Zones
6-186 Change  Illinois DOT  IL  8/2/2001  Add J4 Flagger's Workstation as an Optional Device in the MUTCD    Temporary Traffic Control Zones
6-185 Change  Springfield Plastics, Inc.  IL  4/10/2005  Allow Drums To Be Open on the Top and Bottom    Temporary Traffic Control Zones
6-184 Experiment  Illinois DOT  IL  7/31/2001  "Slow Down My Daddy (Mommy) Works Here" Sign    Signs| Signs - Warning; Object Markers| Temporary Traffic Control Zones
6-183 Experiment  Minnesota DOT  MN  6/18/2001  Type A Portable Changeable Message Signs with 10-inch Letters  Inactive  Signs| Signs - Changeable Message | Temporary Traffic Control Zones
6-181 Experiment  Utah DOT  UT  5/7/2001  Flashing Four Corners and Simultaneous Flashing Diamond Displays for Arrow Board Caution Modes  Final Report Received  Temporary Traffic Control Zones
6-180 Experiment  Oregon DOT  OR  4/19/2001  Alternating Flashing Diamond Displays for Arrow Board Caution Mode  Inactive  Temporary Traffic Control Zones
6-179 Experiment  Pennsylvania DOT  PA  4/4/2001  "Slow Down My Daddy (Mommy) Works Here" Sign    Signs| Signs - Warning; Object Markers| Temporary Traffic Control Zones
6-178 Experiment  Illinois DOT  IL  1/17/2001  J4 Flagger's Workstation  Final Report Received  Temporary Traffic Control Zones
6-132 Experiment  New Hampshire DOT  NH  5/3/1995  Direction Indicator Barricade  Inactive  Temporary Traffic Control Zones
6-117 Experiment  New York State DOT  NY  11/15/2000  Flashing Lights on STOP/SLOW Paddle  Final Report Received  Signs| Signs - Regulatory; Barricades; Gates| Temporary Traffic Control Zones
6-116 Interpretation  Illinois DOT  IL  10/17/2000  J4 Flagger's Workstation    Temporary Traffic Control Zones
6-115 Experiment  New York State DOT  NY  8/24/2000  "Slow Down My Daddy (Mommy) Works Here" Sign    Signs| Signs - Warning; Object Markers| Temporary Traffic Control Zones
6-114 Experiment  Texas DOT  TX  6/12/2000  Fluorescent Orange Raised Pavement Markers    Pavement Markings| Raised Pavement Markers| Temporary Traffic Control Zones
6-113 Experiment  New Mexico DOT  NM  5/1/2000  Work Zone Speed Limit Signs with Orange Borders    Signs| Signs - Regulatory; Barricades; Gates| Temporary Traffic Control Zones
6-112 Experiment  Kansas DOT  KS  11/14/2000  Channelization Drum Sleeves    Temporary Traffic Control Zones
6-111 Interpretation  Advantec Development, Inc.  NY  9/27/2000  Flashing lights on STOP/SLOW Paddle    Signs| Signs - Regulatory; Barricades; Gates| Temporary Traffic Control Zones
6-110 Change  Virginia DOT  VA  7/16/1999  Replace the Flag on the Flagger Ahead Symbol Sign with a STOP/SLOW Paddle    Signs| Signs - Warning; Object Markers| Symbols| Temporary Traffic Control Zones
6-108 Experiment  Texas DOT  TX  5/6/1999  Sequential Flashing Warning Light System    Temporary Traffic Control Zones
6-107 Experiment  Florida DOT  FL  4/12/1999  360-Degree Warning Lights  Final Report Received  Temporary Traffic Control Zones
6-104 Interpretation  Attorney  IL  7/18/1997  Need for Temporary Pavement Markings at an Entrance to a Construction Site    Pavement Markings| Temporary Traffic Control Zones
6-103 Experiment  Ohio DOT  OH  11/8/1996  Automated Flagger Assistance Device (Remote Control Flagman)  Inactive  Temporary Traffic Control Zones
7(09)-4 Change  NCUTCD  XX  1/11/2013  Section 7B.12    School Areas| Signs| Signs - Warning; Object Markers
7(09)-3 Interpretation  Maryland State Highway Administration  MD  7/8/2010  Higher Fines Signs and Plaques in School Areas    School Areas| Signs| Signs - Regulatory; Barricades; Gates
7(09)-2 Change  City of Topeka  KS  1/29/2010  Higher Fines Signs and Plaques in School Areas    School Areas| Signs| Signs - Regulatory; Barricades; Gates
7(09)-1 Change  NCUTCD  XX  1/8/2010  Beginning Point of School Speed Zones    School Areas
7-76 Change  Member of NCUTCD  XX  10/22/2008  ALL YEAR OPERATION Plaque for School Advance Signs    School Areas| Signs| Signs - Warning; Object Markers
7-75 Change  NCUTCD  XX  1/19/2007  Design of School Crosswalk Markings    Pavement Markings| Pedestrians| School Areas
7-74 Interpretation  Citizen  CO  11/21/2006  School Advance Warning Assembly    Introduction| School Areas| Signs| Signs - Regulatory; Barricades; Gates| Signs - Warning; Object Markers
7-73 Change  Member of NCUTCD  XX  8/15/2006  Add "SCHOOL DAYS" to School Speed Limit Plaques    School Areas| Signs| Signs - Regulatory; Barricades; Gates
7-72 Change  NCUTCD  XX  1/20/2006  Delete reference to ITE's "School Trip Safety Program Guidelines"    Introduction| School Areas
7-71 Change  NCUTCD  XX  1/20/2006  Safety Apparel for Student Patrols    Introduction| School Areas
7-70 Experiment  City of Orlando  FL  3/30/2005  Yellow-Green Pavement Markings for School Crosswalks  Inactive  Pavement Markings| Pedestrians| School Areas
7-69 Experiment  City of New York  NY  1/28/2005  Yellow-Green Pavement and Pavement Markings for School Crosswalks  Inactive  Pavement Markings| Pedestrians| School Areas
7-68 Change  NCUTCD  XX  1/7/2005  Provisions regarding School Area Warning Signs    School Areas| Signs| Signs - Warning; Object Markers
7-67 Interpretation  American Automobile Association (AAA)  XX  10/8/2004  Safety Apparel for Student Patrols    School Areas
7-66 Experiment  City of New Port Richey  FL  8/10/2004  Yellow-Green Pavement Markings for School Crosswalks  Inactive  Pavement Markings| Pedestrians| School Areas
7-65 Interpretation  Utah DOT  UT  7/15/2004  In-Street Pedestrian Sign Color and Symbol    Pedestrians| School Areas| Signs| Signs - Regulatory; Barricades; Gates
7-64 Interpretation  Iowa DOT for Cedar Rapids  IA  6/2/2004  Placement of In-Street Pedestrian Crossing Sign    Pedestrians| School Areas| Signs| Signs - Regulatory; Barricades; Gates
7-63 Experiment  Village of Villa Park  IL  3/23/2004  Yellow-Green Pavement Markings for School Crosswalks  Inactive  Pavement Markings| Pedestrians| School Areas
7-62 Experiment  City of Worcester  MA  11/13/2003  Yellow-Green Pavement Markings for School Crosswalks  Inactive  Pavement Markings| Pedestrians| School Areas
7-61 Interpretation  Citizen  FL  9/4/2003  Beginning Point of Reduced School Speed Limit Zone    School Areas| Signs| Signs - Regulatory; Barricades; Gates
7-60 Experiment  City of Cranston  RI  8/18/2003  Yellow-Green Pavement Markings for School Crosswalks  Inactive  Pavement Markings| Pedestrians| School Areas
7-59 Experiment  Village of Downers Grove  IL  6/26/2003  Yellow-Green Pavement Markings for School Crosswalks  Inactive  Pavement Markings| Pedestrians| School Areas
7-58 Experiment  City of Paramount  CA  6/25/2003  In-Street School Zone Sign  Inactive  Pedestrians| School Areas| Signs| Signs - Regulatory; Barricades; Gates| Signs - Warning; Object Markers
7-57 Change  American Traffic Safety Services Association (ATSSA)  XX  5/13/2003  In-Street School Zone Sign    Pedestrians| School Areas| Signs| Signs - Regulatory; Barricades; Gates
7-56 Experiment  City of Scottsdale  AZ  5/7/2003  Yellow-Green Pavement Markings for School Crosswalks  Inactive  Pavement Markings| Pedestrians| School Areas
7-55 Experiment  City of Colorado Springs  CO  1/30/2003  Yellow-Green Pavement Markings for School Crosswalks  Inactive  Pavement Markings| Pedestrians| School Areas
7-54 Experiment  City of Paramount  CA  12/6/2002  Yellow-Green Pavement Markings for School Crosswalks  Inactive  Pavement Markings| Pedestrians| School Areas
7-53 Experiment  Town of Gilbert  AZ  11/6/2002  Yellow-Green Pavement Markings for School Crosswalks  Inactive  Pavement Markings| Pedestrians| School Areas
7-52 Experiment  City of Vandalia  OH  9/23/2002  Yellow-Green Pavement Markings for School Crosswalks  Inactive  Pavement Markings| Pedestrians| School Areas
7-51 Experiment  Idaho Transportation Department  ID  9/20/2002  Yellow-Green Pavement Markings for School Crosswalks  Inactive  Pavement Markings| Pedestrians| School Areas
7-50 Interpretation  Citizen  KY  9/2/2002  Various Questions regarding Traffic Control Devices for School Areas    Pavement Markings| School Areas| Signs| Signs - Regulatory; Barricades; Gates| Signs - Warning; Object Markers
7-49 Experiment  City of Avondale  AZ  8/16/2002  Yellow-Green Pavement Markings for School Crosswalks  Inactive  Pavement Markings| Pedestrians| School Areas
7-48 Experiment  City of Battle Creek  MI  7/26/2002  Yellow-Green Pavement Markings for School Crosswalks  Inactive  Pavement Markings| Pedestrians| School Areas
7-47 Experiment  City of Logan  UT  7/30/2002  Yellow-Green Pavement Markings for School Crosswalks  Inactive  Pavement Markings| Pedestrians| School Areas
7-46 Experiment  Kentucky Transportation Cabinet  KY  8/8/2002  Yellow-Green Pavement Markings for School Crosswalks  Inactive  Pavement Markings| Pedestrians| School Areas
7-45 Experiment  City of Fountain Valley  CA  8/5/2002  Yellow-Green Pavement Markings for School Crosswalks  Inactive  Pavement Markings| Pedestrians| School Areas
7-44 Interpretation  City of Overland Park  KS  2/18/2002  Placement of School Advance Warning Signs    School Areas| Signs| Signs - Warning; Object Markers
7-43 Experiment  City of Paterson  NJ  7/30/2002  Yellow-Green Pavement Markings for School Crosswalks  Inactive  Pavement Markings| Pedestrians| School Areas
7-42 Experiment  City of Milwaukee  WI  12/5/2001  School Crosswalk Warning Assembly and Pedestrian Crossing with Flashing LEDs in Sign Border  Inactive  Pedestrians| School Areas| Signs| Signs - Warning; Object Markers
7-41 Experiment  City of Denton  TX  9/24/2001  School Zone Portable Warning Signs  Inactive  Pedestrians| School Areas| Signs| Signs - Warning; Object Markers
7-40 Interpretation  City of Overland Park  KS  7/26/2001  School Advance Warning Signs (S1-1)    School Areas| Signs| Signs - Warning; Object Markers
7-39 Experiment  City of Chicago  IL  6/13/2001  Yellow-Green Pavement Markings for School Zone Crosswalks  Final Report Received  Pavement Markings| Pedestrians| School Areas
7-16 Experiment  Washington State DOT  WA  9/27/1999  School Zone Portable Warning Signs  Inactive  Pedestrians| School Areas| Signs| Signs - Warning; Object Markers
7-15 Experiment  Cities of Clearfield, Salt Lake City, Spanish Fork, North Ogden, Riverton, and Sandy  UT  9/29/1999  School Crossing Portable STOP Signs (denied)  Denied  Pedestrians| School Areas| Signs| Signs - Regulatory; Barricades; Gates
7-14 Interpretation  Alabama DOT  AL  11/3/1998  Use of Fluorescent Yellow-Green for the SCHOOL (S4-3) Plaque and Bicycle Crossing Sign (also see Official Rulings 7-12 and 7-13)    Bikes| School Areas| Signs| Signs - Warning; Object Markers
7-13 Interpretation  City of Orem  UT  11/10/1998  Use of Fluorescent Yellow-Green for the SCHOOL Plaque and the ALL YEAR Plaque (the correspondence calls this Official Ruling 7-14)    School Areas| Signs| Signs - Warning; Object Markers
7-12 Interpretation  Illinois DOT  IL  2/4/1999  Use of Fluorescent Yellow-Green for the SCHOOL (S4-3) Plaque and the School Speed Limit (S5-1) Sign (the correspondence calls this Official Ruling 7-14)    School Areas| Signs| Signs - Warning; Object Markers
7-3 Interpretation  City of Bristol  TN  1/24/1991  Use of School Warning Signs    Pedestrians| School Areas| Signs| Signs - Warning; Object Markers
7-2 Change  North Carolina DOT  NC  1/31/1990  School Bus Stop Ahead Symbol Sign    School Areas| Signs| Signs - Warning; Object Markers| Symbols
7-1 Experiment  City of Louisville  KY  9/22/1989  School Traffic Operations Program (STOP) for Safety (denied)  Denied  School Areas
8(09)-26 Interpretation  CTC, Inc.  TX  2/23/2016  Use of Edge Lines at Grade Crossings    Light Rail Transit Traffic Control Devices| Pavement Markings| Railroad Grade Crossings
8(09)-25 Experiment  Minnesota DOT for St. Paul  MN  8/24/2016  Flashing Light Rail Transit Warning Signs for Pedestrians  Active  Light Rail Transit Traffic Control Devices| Pedestrians| Signs| Signs - Changeable Message | Signs - Warning; Object Markers
8(09)-24 Change  NCUTCD  XX  1/8/2016  Stop Lines at Active Grade Crossings    Light Rail Transit Traffic Control Devices| Pavement Markings| Railroad Grade Crossings
8(09)-23 Change  NCUTCD  XX  1/8/2016  Edge Line Markings at Grade Crossings    Light Rail Transit Traffic Control Devices| Pavement Markings| Railroad Grade Crossings| Raised Pavement Markers
8(09)-22 Experiment  New York State DOT  NY  7/19/2016  Speech Warning Messages at Highway Rail Grade Crossings  Active  Light Rail Transit Traffic Control Devices| Railroad Grade Crossings
8(09)-21 Interpretation  CTC, Inc.  TX  2/23/2016  Use of Tubular Markers at Grade Crossings    Light Rail Transit Traffic Control Devices| Pavement Markings| Railroad Grade Crossings
8(09)-20 Experiment  Minnesota DOT for St. Paul  MN  9/22/2015  Flashing Light Rail Transit Warning Signs  Active  Light Rail Transit Traffic Control Devices| Signs| Signs - Changeable Message | Signs - Warning; Object Markers
8(09)-19 Interpretation  CTC, Inc.  TX  10/10/2014  Positioning of Signal Faces at Pre-Signals    Light Rail Transit Traffic Control Devices| Railroad Grade Crossings| Traffic Control Signals
8(09)-18 Change  NCUTCD  XX  6/28/2014  Four-Quadrant Gate Systems    Light Rail Transit Traffic Control Devices| Railroad Grade Crossings
8(09)-17 Change  NCUTCD  XX  6/28/2014  Flashing-Light Signals    Light Rail Transit Traffic Control Devices| Railroad Grade Crossings
8(09)-16 Change  NCUTCD  XX  6/28/2014  Emergency Notification Signs    Railroad Grade Crossings| Signs
8(09)-15 Change  NCUTCD  XX  6/28/2014  Busway Grade Crossings    Light Rail Transit Traffic Control Devices| Railroad Grade Crossings
8(09)-14 Change  NCUTCD  XX  6/28/2014  Crossbuck Assemblies    Light Rail Transit Traffic Control Devices| Railroad Grade Crossings| Signs| Signs - Regulatory; Barricades; Gates
8(09)-13 Change  NCUTCD  XX  6/28/2014  Traffic Signal Preemption for Grade Crossings    Light Rail Transit Traffic Control Devices| Railroad Grade Crossings| Traffic Control Signals
8(09)-12 Change  NCUTCD  XX  6/26/2014  Revisions to Definitions and Chapter 8A    Light Rail Transit Traffic Control Devices| Railroad Grade Crossings
8(09)-11 Change  NCUTCD  XX  6/28/2013  Pathway Grade Crossings    Bikes| Light Rail Transit Traffic Control Devices| Pedestrians| Railroad Grade Crossings
8(09)-10 Experiment  City of Galesburg  IL  1/11/2013  Symbol Sign Warning Pedestrians to Look for Second Train (denied)  Denied  Light Rail Transit Traffic Control Devices| Railroad Grade Crossings| Signs| Signs - Warning; Object Markers| Symbols
8(09)-9 Change  NCUTCD  XX  1/11/2013  Combine Sections 8C.03 and 8C.05    Light Rail Transit Traffic Control Devices
8(09)-8 Experiment  City and County of Los Angeles  CA  8/7/2012  Red In-Roadway Lights at Light Rail Transit Grade Crossings  Active  In-Roadway Warning Lights| Light Rail Transit Traffic Control Devices| Traffic Control Signals
8(09)-7 Interpretation  Ohio Rail Development Commission  OH  2/22/2011  Size of YIELD and STOP signs at Crossbuck Assemblies    Light Rail Transit Traffic Control Devices| Railroad Grade Crossings| Signs| Signs - Regulatory; Barricades; Gates
8(09)-6 Change  NCUTCD  XX  1/21/2011  Editorial Clarifications    Light Rail Transit Traffic Control Devices| Railroad Grade Crossings
8(09)-5 Change  NCUTCD  XX  1/21/2011  Revision of Marking Requirements for Grade Crossings    Light Rail Transit Traffic Control Devices| Pavement Markings| Railroad Grade Crossings
8(09)-4 Change  NCUTCD  XX  1/21/2011  Revision of Signing Requirements for Grade Crossings    Light Rail Transit Traffic Control Devices| Railroad Grade Crossings| Signs
8(09)-3 Interpretation  Campbell Technology Corporation  IL  6/25/2010  Use of Single Gate Mechanisms at Grade Crossings    Light Rail Transit Traffic Control Devices| Pedestrians| Railroad Grade Crossings| Signs - Regulatory; Barricades; Gates
8(09)-2 Interpretation  Association of American Railroads (AAR)  XX  7/22/2010  Compliance Date for Vertical Stripes on Gate Arms    Light Rail Transit Traffic Control Devices| Railroad Grade Crossings| Signs - Regulatory; Barricades; Gates
8(09)-1 Interpretation  Campbell Technology Corporation  TX  1/28/2010  Width of Retroreflective Strip on Round Support    Light Rail Transit Traffic Control Devices| Railroad Grade Crossings| Signs| Signs - Regulatory; Barricades; Gates
8-84 Change  NCUTCD  XX  6/20/2009  Arrow and Edge Line Markings at Grade Crossings    Light Rail Transit Traffic Control Devices| Pavement Markings| Railroad Grade Crossings
8-83 Experiment  City of Riverside  CA  6/17/2009  Symbol Sign Warning Pedestrians to Look for Second Train  Final Report Received  Light Rail Transit Traffic Control Devices| Railroad Grade Crossings| Signs| Signs - Warning; Object Markers| Symbols
8-82 Change  NCUTCD  XX  1/19/2007  Use of "Safe" in Part 8    General| Light Rail Transit Traffic Control Devices| Railroad Grade Crossings
8-81 Change  NCUTCD  XX  1/19/2007  Revisions to Emergency Notification Sign    Light Rail Transit Traffic Control Devices| Railroad Grade Crossings| Signs
8-80 Change  NCUTCD  XX  1/19/2007  New Chapter on Pathway Grade Crossings    Bikes| Light Rail Transit Traffic Control Devices| Pedestrians| Railroad Grade Crossings
8-79 Change  NCUTCD  XX  6/30/2006  Wayside Horn Systems    Light Rail Transit Traffic Control Devices| Railroad Grade Crossings
8-78 Change  NCUTCD  XX  6/30/2006  New Grade Crossing Definitions    General| Railroad Grade Crossings
8-77 Change  NCUTCD  XX  6/30/2006  Quiet Zone Treatments    Railroad Grade Crossings
8-76 Change  NCUTCD  XX  6/30/2006  Grade Crossings Near Circular Intersections    Light Rail Transit Traffic Control Devices| Railroad Grade Crossings| Roundabouts and Circular Intersections
8-75 Change  NCUTCD  XX  1/20/2006  Back-up Power for Preempted Traffic Control Signals    Light Rail Transit Traffic Control Devices| Railroad Grade Crossings| Traffic Control Signals
8-74 Change  NCUTCD  XX  1/20/2006  Vertical Stripes on Gate Arms    Light Rail Transit Traffic Control Devices| Railroad Grade Crossings| Signs - Regulatory; Barricades; Gates
8-73 Change  NCUTCD  XX  6/13/2003  Pavement Markings Required Only on Paved Roadways    Light Rail Transit Traffic Control Devices| Pavement Markings| Railroad Grade Crossings
8-72 Change  NCUTCD  XX  6/25/2004  Advance Warning Supplemental Plaques    Light Rail Transit Traffic Control Devices| Railroad Grade Crossings| Signs| Signs - Warning; Object Markers
8-71 Change  NCUTCD  XX  6/25/2004  Crossbuck Sign with YIELD or STOP Sign    Light Rail Transit Traffic Control Devices| Railroad Grade Crossings| Signs| Signs - Regulatory; Barricades; Gates
8-70 Change  NCUTCD  XX  6/25/2004  Eliminate Railroad Companies from Group Determining Preemption Operation    Light Rail Transit Traffic Control Devices| Railroad Grade Crossings| Traffic Control Signals
8-69 Interpretation  University of South Florida  FL  8/24/2004  Use of Highway-Rail Grade Crossing Gates for Highway-Busway Grade Crossings    Railroad Grade Crossings| Signs - Regulatory; Barricades; Gates
8-68 Change  Association of American Railroads (AAR)  XX  2/20/2004  Request to Add Crossbuck Assembly and Supplemental Plaques Below W10-1 Signs    Railroad Grade Crossings| Signs| Signs - Regulatory; Barricades; Gates| Signs - Warning; Object Markers
8-67 Change  FHWA TN Division Office  TN  8/21/2003  Use of Yield Lines at Passive Crossings    Light Rail Transit Traffic Control Devices| Pavement Markings| Railroad Grade Crossings
8-66 Interpretation  Florida DOT  FL  7/8/2003  Guardhouses and Traffic Gates on Public Streets    General| Signs - Regulatory; Barricades; Gates
8-65 Change  Railroad Controls Limited  TX  6/9/2003  Wayside Horn System    Railroad Grade Crossings
8-64 Change  Citizen  MO  3/26/2003  Symbol for Use on Advance Grade Crossing (W10-1) Sign    Railroad Grade Crossings| Signs| Signs - Regulatory; Barricades; Gates| Symbols
8-63 Change  Member of NCUTCD  XX  2/4/2002  Retroreflectorized Strip on the Crossbuck Support Only at Passive Crossings    Light Rail Transit Traffic Control Devices| Railroad Grade Crossings| Signs| Signs - Regulatory; Barricades; Gates
8-62 Change  Member of NCUTCD  XX  2/4/2002  Status of In-Roadway Lights and Raisable Barriers at Grade Crossings-Michigan    In-Roadway Warning Lights| Light Rail Transit Traffic Control Devices| Railroad Grade Crossings| Signs - Regulatory; Barricades; Gates
8-60 Interpretation  Consultant  TN  10/29/2001  Use of Look Sign (R15-8) with Reduced Speed Sign in Advance of a Highway-Rail Grade Crossing    Light Rail Transit Traffic Control Devices| Railroad Grade Crossings| Signs| Signs - Regulatory; Barricades; Gates| Signs - Warning; Object Markers
8-59 Interpretation  Applied Research Associates  TN  6/27/2000  Reflectorized Tape on Crossbuck Sign Post and Sign Blades    Light Rail Transit Traffic Control Devices| Railroad Grade Crossings| Signs| Signs - Regulatory; Barricades; Gates
8-58 Change  NCUTCD  XX  1/30/2002  Eliminate Requirement for Retroreflective Strips on Crossbuck Supports at Active Crossings    Light Rail Transit Traffic Control Devices| Railroad Grade Crossings| Signs| Signs - Regulatory; Barricades; Gates
8-57 Interpretation  FHWA MT Division Office  MT  12/11/2001  Requirements for Retroreflective Strip on Crossbuck Supports at Active Crossings    Light Rail Transit Traffic Control Devices| Railroad Grade Crossings| Signs| Signs - Regulatory; Barricades; Gates
8-56 Experiment  New Mexico DOT  NM  3/6/2000  Idaho Shield with YIELD Sign  Active  Light Rail Transit Traffic Control Devices| Railroad Grade Crossings| Signs| Signs - Regulatory; Barricades; Gates
8-55 Interpretation  New Mexico DOT  NM  11/8/1999  Idaho Shield with YIELD Sign    Light Rail Transit Traffic Control Devices| Railroad Grade Crossings| Signs| Signs - Regulatory; Barricades; Gates
8-54 Experiment  Outagamie County and five towns in Wisconsin  WI  2/19/1999  Highway-Rail Grade Crossing Warning Sign Markers  Final Report Received  Light Rail Transit Traffic Control Devices| Railroad Grade Crossings| Signs| Signs - Warning; Object Markers
8-53 Experiment  North Carolina DOT  NC  10/6/1998  EVA Signal Corporation Grade Crossing Signal System  Inactive  Railroad Grade Crossings
8-43 Change  Illinois DOT  IL  11/20/1996  Highway-Rail Pavement Marking and Storage Space Signing Plan    Light Rail Transit Traffic Control Devices| Pavement Markings| Railroad Grade Crossings| Signs| Signs - Warning; Object Markers
8-42 Change  Federal Railroad Administration (FRA)  XX  3/22/1996  STOP Signs at Grade Crossings as an Interim Treatment Prior to Installation of Active Devices, and Low Ground Clearance Warning Sign    Light Rail Transit Traffic Control Devices| Railroad Grade Crossings| Signs| Signs - Warning; Object Markers
8-41 Interpretation  Nevada DOT  NV  2/1/1995  Minimum Pedestrian Clearance Width for Flashing Light Signals and Automatic Gates    Light Rail Transit Traffic Control Devices| Pedestrians| Railroad Grade Crossings
8-39 Change  Federal Railroad Administration (FRA)  XX  7/28/1993  Warrants for Warning Devices at Highway-Rail Grade Crossings with High-Speed Train Operation    Light Rail Transit Traffic Control Devices| Railroad Grade Crossings| Warrants
8-38 Change  Federal Railroad Administration (FRA)  XX  7/28/1993  Watch for Second Train Supplemental Plaques on STOP and YIELD Signs Used at Highway-Rail Grade Crossings    Light Rail Transit Traffic Control Devices| Railroad Grade Crossings| Signs| Signs - Warning; Object Markers
8-37 Change  Federal Railroad Administration (FRA)  XX  7/28/1993  Fast Train Signs    Light Rail Transit Traffic Control Devices| Railroad Grade Crossings| Signs| Signs - Warning; Object Markers
8-36 Change  Citizen  FL  4/12/1993  Safety Zones and No Lane Change Zones at Grade Crossings    Light Rail Transit Traffic Control Devices| Pavement Markings| Railroad Grade Crossings
8-35 Interpretation  FHWA  XX  12/30/1992  Definition of Two or More Trains per Day    Railroad Grade Crossings
8-34 Experiment  Saunders County and other local governments in Nebraska  NE  7/19/1995  EVA Signal Corporation Grade Crossing Signal System  Inactive  Railroad Grade Crossings
8-33 Experiment  Greene County  MO  5/13/1992  Passive Yield Sign that Lights Up when Locomotive Headlight Shines Upon It  Inactive  Light Rail Transit Traffic Control Devices| Railroad Grade Crossings| Signs| Signs - Regulatory; Barricades; Gates
8-31 Experiment  Idaho Transportation Department  ID  12/19/1991  IdaShield Sign (also see Official Ruling 8-27 for the Ohio Buckeye Sign)  Active  Railroad Grade Crossings| Signs| Signs - Regulatory; Barricades; Gates
8-30 Change  Consultant  PA  7/18/1991  Symbol for Number of Tracks Sign    Light Rail Transit Traffic Control Devices| Railroad Grade Crossings| Signs| Signs - Regulatory; Barricades; Gates| Symbols
8-29 Change  Consultant  PA  7/18/1991  Symbol for Railroad Advance Warning Sign    Light Rail Transit Traffic Control Devices| Railroad Grade Crossings| Signs| Signs - Warning; Object Markers| Symbols
8-28 Experiment  Kansas DOT  KS  4/15/1991  Evaluation of Passive Warning Devices including YIELD Sign, Buckeye Crossbuck Sign, and/or Roadside Delineators  Inactive  Delineators| Light Rail Transit Traffic Control Devices| Railroad Grade Crossings| Signs| Signs - Regulatory; Barricades; Gates
8-27 Experiment  Ohio DOT  OH  12/19/1991  Ohio Buckeye Sign (the correspondence calls this Official Ruling 8-31)  Inactive  Railroad Grade Crossings| Signs| Signs - Regulatory; Barricades; Gates
8-26 Change  NCUTCD  XX  2/15/1988  Increase Maximum Flash Rate for Flashing-Light Signals to 65 Flashes per Minute    Light Rail Transit Traffic Control Devices| Railroad Grade Crossings
8-25 Interpretation  Wisconsin DOT  WI  2/6/1990  Placement of the STOP Sign at Highway-Rail Grade Crossings    Light Rail Transit Traffic Control Devices| Railroad Grade Crossings| Signs| Signs - Regulatory; Barricades; Gates
8-24 Change  Wisconsin DOT  WI  2/19/1990  Elimination of Requirement for Pavement Markings at Highway-Rail Grade Crossings    Light Rail Transit Traffic Control Devices| Pavement Markings| Railroad Grade Crossings
8-23 Interpretation  New Jersey DOT  NJ  4/17/1989  Center Line Markings through Highway-Rail Grade Crossings    Light Rail Transit Traffic Control Devices| Pavement Markings| Railroad Grade Crossings
8-22 Change  NCUTCD  XX  7/18/1989  Modifications to the Crossbuck Sign    Light Rail Transit Traffic Control Devices| Railroad Grade Crossings| Signs| Signs - Regulatory; Barricades; Gates
8-21 Change  Montana Department of Highways and NCUTCD  MT  12/1/1988  Add an Alternate Narrow Advance Warning Pavement Marking Symbol    Light Rail Transit Traffic Control Devices| Pavement Markings| Railroad Grade Crossings| Symbols
8-20 Experiment  City of Arlington  TX  6/1/1988  Add an Alternate Narrow Advance Warning Pavement Marking Symbol  Inactive  Light Rail Transit Traffic Control Devices| Pavement Markings| Railroad Grade Crossings| Symbols
8-19 Interpretation  City of Cedar Rapids  IA  8/5/1986  Requirements for Railroad Crossing Pavement Markings in Urban Areas    Light Rail Transit Traffic Control Devices| Pavement Markings| Railroad Grade Crossings
8-18 Change  NCUTCD  XX  1/10/1985  Delete Traffic Signal Preemption Drawing, Figure 8-8    Light Rail Transit Traffic Control Devices| Railroad Grade Crossings
8-17 Change  Maryland Labor Division and NCUTCD  MD  4/18/1985  Use of YIELD Signs at Passive Grade Crossings    Light Rail Transit Traffic Control Devices| Railroad Grade Crossings| Signs| Signs - Regulatory; Barricades; Gates
8-16 Change  NCUTCD  XX  1/10/1985  Add a TRACKS OUT OF SERVICE Sign    Light Rail Transit Traffic Control Devices| Railroad Grade Crossings| Signs| Signs - Regulatory; Barricades; Gates
8-15 Experiment  Knox County and City of Knoxville  TN  12/10/1984  Innovative Active Warning Devices including Skirts on Four-Quadrant Gates, Red Strobe Lights on Four-Quadrant Gates, and Traffic Control Signals with White Strobes in Red Indications  Inactive  Light Rail Transit Traffic Control Devices| Railroad Grade Crossings
8-14 Change  NCUTCD  XX  7/25/1983  Revisions to MUTCD Text Stating that Preemption of Highway Traffic Signals Should Use a Closed-Circuit Principle    Light Rail Transit Traffic Control Devices| Railroad Grade Crossings| Traffic Control Signals
8-13 Experiment  Michigan DOT  MI  6/13/1984  Active Advance Warning Devices  Inactive  Light Rail Transit Traffic Control Devices| Railroad Grade Crossings| Signs| Signs - Warning; Object Markers
8-12 Change  NCUTCD  XX  7/25/1983  Placement of Railroad Crossing Pavement Marking and Advance Warning Signs    Light Rail Transit Traffic Control Devices| Pavement Markings| Railroad Grade Crossings
8-11 Change  NCUTCD  XX  1/10/1985  Placement of DO NOT STOP ON TRACKS Sign    Light Rail Transit Traffic Control Devices| Railroad Grade Crossings| Signs| Signs - Regulatory; Barricades; Gates
8-10 Change  NCUTCD  XX  7/25/1983  Detection of Approaching Trains for at Least 20 Seconds Prior to Their Arrival at the Grade Crossing    Light Rail Transit Traffic Control Devices| Railroad Grade Crossings
8-9 Change  Florida DOT  FL  11/6/1980  Elevation of Top of Foundation for Flashing-Light Signals and Gates    Light Rail Transit Traffic Control Devices| Railroad Grade Crossings
8-8 Change  FHWA  XX  4/3/1980  Eliminate the Letters R and R from the Advance Warning Pavement Marking Symbol    Light Rail Transit Traffic Control Devices| Pavement Markings| Railroad Grade Crossings
8-7 Change  FHWA Office of Highway Safety  XX  11/21/1979  Required Use of Crossbuck Signs on Bikeways    Bikes| Light Rail Transit Traffic Control Devices| Railroad Grade Crossings| Signs| Signs - Regulatory; Barricades; Gates
8-6 Change  Citizen  FL  11/27/1979  Details of Railroad Bells    Light Rail Transit Traffic Control Devices| Railroad Grade Crossings
8-5 Change  FHWA Office of Highway Safety  XX  5/15/1979  Warrants for the Use of STOP Signs at Grade Crossings    Light Rail Transit Traffic Control Devices| Railroad Grade Crossings| Signs| Signs - Regulatory; Barricades; Gates| Warrants
8-4 Change  National Highway Safety Advisory Committee  XX  12/8/1978  Railroad Advance Warning Sign Depicting the Angle of the Crossing    Light Rail Transit Traffic Control Devices| Railroad Grade Crossings| Signs| Signs - Warning; Object Markers| Symbols
8-3 Change  FHWA Region 10  XX  3/20/1978  Add 4-Inch Black Border to Crossbuck Sign    Light Rail Transit Traffic Control Devices| Railroad Grade Crossings| Signs| Signs - Regulatory; Barricades; Gates
8-2 Change  National Advisory Committee on Uniform Traffic Control Devices  XX  1/19/1978  Warning Signs on Roadways Parallel to a Railroad    Light Rail Transit Traffic Control Devices| Railroad Grade Crossings| Signs| Signs - Warning; Object Markers| Symbols
8-1 Change  National Advisory Committee on Uniform Traffic Control Devices  XX  1/19/1978  Lateral Clearance for Flashing-Light Signals and Gates    Light Rail Transit Traffic Control Devices| Railroad Grade Crossings
9(09)-100 Change  NCUTCD  XX  1/6/2017  Warning Signs for Bicycle Merge Conditions    Bikes| Signs| Signs - Warning; Object Markers
9(09)-99 Change  NCUTCD  XX  1/6/2017  Additional Technical Guidance for Shared Lane Markings    Bikes| Pavement Markings
9(09)-98 Change  NCUTCD  XX  1/6/2017  Revisions to Interim Approval IA-18 for Intersection Bicycle Boxes    Bikes| Pavement Markings
9(09)-96 Experiment  Minnesota DOT for St. Paul  MN  4/13/2016  Bike Signal Heads with Conflicts   Active  Bikes| Traffic Control Signals
9(09)-94 Experiment  City of Spartanburg  SC  7/15/2016  Bike Signal Heads with Conflicts   Active  Bikes| Traffic Control Signals
9(09)-93 Experiment  Pennsylvania DOT for Philadelphia  PA  8/5/2016  Two-Stage Turn Boxes  Active  Bikes| Colored Pavements| Pavement Markings| Signs| Symbols
9(09)-92 Experiment  Cities of Goleta and Santa Barbara  CA  8/5/2016  Green-Colored Pavement behind Shared-Lane Marking  Active  Bikes| Colored Pavements| Pavement Markings
9(09)-91 Change  NCUTCD  XX  1/8/2016  General Service Signs for Bikeways    Bikes| Signs| Signs - Specific Service; General Service; Tourist-Oriented Direc
9(09)-90 Change  NCUTCD  XX  1/8/2016  Guidance for Numbered Bicycle Route Signing    Bikes| Signs| Signs - Guide
9(09)-89 Experiment  City of Cupertino  CA  6/13/2016  Bike Boxes  Active  Bikes| Colored Pavements| Pavement Markings
9(09)-88 Experiment  City of El Paso  TX  6/1/2016  Bike Boxes  Active  Bikes| Colored Pavements| Pavement Markings
9(09)-87 Experiment  City of Rochester  NY  12/29/2014  Bike Boxes and Two-Stage Turn Boxes  Active  Bikes| Colored Pavements| Pavement Markings
9(09)-86 Interpretation  American Traffic Safety Services Association (ATSSA)  XX  11/16/2015  Chromaticity Requirements for Green-Colored Pavement    Bikes| Colored Pavements| Pavement Markings
9(09)-85 Experiment  City of West Allis  WI  4/19/2016  Bike Boxes  Active  Bikes| Colored Pavements| Pavement Markings
9(09)-84 Experiment  Minnesota DOT for Hennepin County  MN  7/15/2015  Flashing Yellow Bike Signal  Active  Bikes| Traffic Control Signals
9(09)-83 Experiment  University of California, San Diego (UCSD)  CA  5/5/2015  Bike Boxes  Active  Bikes| Colored Pavements| Pavement Markings
9(09)-82 Experiment  Minnesota DOT for St. Paul  MN  3/11/2016  Two-Stage Turn Boxes  Active  Bikes| Colored Pavements| Pavement Markings
9(09)-81 Experiment  City of Tempe  AZ  2/9/2016  Bike Boxes  Active  Bikes| Colored Pavements| Pavement Markings
9(09)-80 Experiment  City of Lexington - Fayette Co.  KY  6/2/2015  Bike Boxes  Active  Bikes| Colored Pavements| Pavement Markings
9(09)-79 Experiment  City of Mountain View  CA  12/2/2015  Bike Boxes  Active  Bikes| Colored Pavements| Pavement Markings
9(09)-78 Experiment  California DOT  CA  10/8/2015  Bike Boxes in Tiburon  Active  Bikes| Colored Pavements| Pavement Markings
9(09)-77 Experiment  City of Eau Claire  WI  4/29/2015  Bike Boxes with Center Bike Lane  Active  Bikes| Colored Pavements| Pavement Markings
9(09)-76 Experiment  City of Lincoln  NE  5/27/2015  Two-Stage Turn Boxes  Active  Bikes| Colored Pavements| Pavement Markings| Signs| Signs - Regulatory; Barricades; Gates
9(09)-75 Experiment  City of Columbus  OH  12/18/2014  Two-Stage Turn Boxes  Active  Bikes| Colored Pavements| Pavement Markings| Signs| Signs - Regulatory; Barricades; Gates
9(09)-74 Interpretation  Louisville Metro Government  KY  12/19/2014  Decimal Distances on Bicycle Destination Guide Signing    Bikes| Signs| Signs - Guide
9(09)-73 Experiment  Ada County  ID  11/17/2014  Bike Boxes and Two-Stage Turn Boxes  Active  Bikes| Colored Pavements| Pavement Markings
9(09)-72 Experiment  City of Boulder  CO  11/18/2014  Bike Boxes  Active  Bikes| Colored Pavements| Pavement Markings
9(09)-71 Experiment  City of Bloomington  IN  9/16/2014  Bike Boxes, Dashed Bike Lanes, and an Alternative Design of the Shared-Lane Marking  Active  Bikes| Colored Pavements| Pavement Markings
9(09)-70 Experiment  City of Boulder  CO  8/8/2014  Dashed Bike Lanes  Active  Bikes| Pavement Markings
9(09)-69 Experiment  Town of Arlington  MA  8/4/2014  Two-Stage Turn Boxes  Active  Bikes| Pavement Markings
9(09)-68 Change  Louisville Metro Government  KY  6/10/2014  Alternative Design for the BIKE LANE (R3-17) sign    Bikes| Signs| Signs - Regulatory; Barricades; Gates
9(09)-67 Experiment  City of Columbia  MO  7/11/2014  Pavement Markings for Bicycle Navigation  Active  Bikes| Pavement Markings| Symbols
9(09)-66 Experiment  City of Columbia  MO  7/11/2014  Bicycle Detector Pavement Marking Alternatives  Active  Bikes| Pavement Markings| Symbols
9(09)-65 Change  NCUTCD  XX  6/28/2014  Wayfinding Signs for Shared-Use Paths    Bikes| Signs| Signs - Guide
9(09)-64 Change  NCUTCD  XX  6/28/2014  Bike Lane Extensions    Bikes| Pavement Markings
9(09)-63 Change  NCUTCD  XX  6/28/2014  Turning Vehicles Yield to Bikes and Pedestrians Signs    Bikes| Signs| Signs - Regulatory; Barricades; Gates
9(09)-62 Change  NCUTCD  XX  6/28/2014  Two-Stage Turn Boxes    Bikes| Colored Pavements| Pavement Markings
9(09)-61 Change  NCUTCD  XX  6/28/2014  Advance Intersection Lane Control Regulatory Sign    Bikes| Signs| Signs - Regulatory; Barricades; Gates
9(09)-60 Change  NCUTCD  XX  6/28/2014  Bike Lane Regulatory Plaque    Bikes| Signs| Signs - Regulatory; Barricades; Gates
9(09)-59 Change  NCUTCD  XX  6/28/2014  Non-Numbered Bike Route Signs    Bikes| Signs| Signs - Guide
9(09)-58 Change  NCUTCD  XX  6/28/2014  Counter-Flow Bike Lanes    Bikes| Pavement Markings
9(09)-57 Change  NCUTCD  XX  6/28/2014  EXCEPT BICYCLES Warning Plaque    Bikes| Signs| Signs - Warning; Object Markers
9(09)-56 Change  NCUTCD  XX  6/28/2014  Buffer-Separated Bike Lanes    Bikes| Pavement Markings
9(09)-55 Change  NCUTCD  XX  6/28/2014  Bike Box    Bikes| Colored Pavements| Pavement Markings
9(09)-54 Experiment  City of Alexandria  VA  7/11/2014  Dashed Bike Lanes  Active  Bikes| Pavement Markings
9(09)-53 Experiment  City of Charlotte  NC  3/5/2014  Bike Boxes and Two-Stage Turn Boxes  Active  Bikes| Colored Pavements| Pavement Markings
9(09)-52 Experiment  City of Boston  MA  6/13/2014  Bike Boxes, Two-Stage Turn Boxes, and Priority Bike Lanes  Active  Bikes| Colored Pavements| Pavement Markings| Signs| Signs - Regulatory; Barricades; Gates
9(09)-51 Experiment  City of Wauwatosa  WI  5/9/2014  Bike Boxes  Active  Bikes| Colored Pavements| Pavement Markings
9(09)-50 Interpretation  City of Ithaca  NY  4/2/2014  Pavement Markings for Designated Bicycle Routes    Bikes| Pavement Markings
9(09)-49 Experiment  City of Charlottesville  VA  12/31/2013  Bike Boxes and Two-Stage Turn Boxes   Active  Bikes| Colored Pavements| Pavement Markings| Signs
9(09)-48 Experiment  City of Somerville  MA  2/12/2014  Bike Boxes  Active  Bikes| Colored Pavements| Pavement Markings
9(09)-47 Interpretation  FHWA  XX  2/12/2014  Clarification of the Interim Approval for the Optional Use of a Bicycle Signal Face (IA-16)    Bikes| Traffic Control Signals
9(09)-46 Experiment  City of Los Angeles  CA  12/18/2013  Green Colored Pavement behind Shared Lane Marking (denied)  Denied  Bikes| Colored Pavements| Pavement Markings
9(09)-45 Experiment  Minnesota DOT for Minneapolis  MN  10/1/2013  Bike Signal Heads and Two-Stage Left-Turn Queue Boxes  Active  Bikes| Pavement Markings| Signs| Signs - Regulatory; Barricades; Gates| Traffic Control Signals
9(09)-44 Experiment  City of Columbia  MO  10/15/2013  Alternative Pavement Marking for Bicycle Boulevards  Active  Bikes| Pavement Markings
9(09)-43 Experiment  Massachusetts DOT  MA  8/19/2013  Bike Boxes, Priority Shared Lane Markings, and Two-Stage Bike Turn Boxes  Active  Bikes| Colored Pavements| Pavement Markings
9(09)-42 Experiment  City of Ithaca  NY  6/10/2013  Bike Signal Heads  Active  Bikes| Traffic Control Signals
9(09)-41 Experiment  City of Davis  CA  3/19/2013  Bike Boxes  Active  Bikes| Colored Pavements| Pavement Markings
9(09)-40 Experiment  City of Quincy  MA  12/6/2012  Bike Boxes  Active  Bikes| Colored Pavements| Pavement Markings
9(09)-39 Interpretation  Michigan DOT  MI  11/20/2012  Installation of Advance Turn and Directional Assemblies for Bike Route Signs    Bikes| Signs| Signs - Guide
9(09)-38 Experiment  City of Oakland  CA  10/25/2012  Green Colored Pavement for Shared Lane Marking  Active  Bikes| Colored Pavements| Pavement Markings
9(09)-37 Experiment  Oregon DOT  OR  7/3/2012  Bike Signal Heads  Inactive  Bikes| Traffic Control Signals
9(09)-35 Experiment  City of Lakeland  FL  8/24/2012  Bike Boxes and Bike Signal Heads  Active  Bikes| Colored Pavements| Pavement Markings| Traffic Control Signals
9(09)-34 Experiment  City of Chicago  IL  7/24/2012  Bike Signal Heads  Inactive  Bikes| Traffic Control Signals
9(09)-33 Change  NCUTCD  XX  6/22/2012  Revisions to Standard statements    Bikes
9(09)-32 Experiment  City of Sparks  NV  4/17/2012  Bike Signal Heads  Active  Bikes| Traffic Control Signals
9(09)-31 Experiment  Minnesota DOT for Richfield  MN  6/21/2012  Dashed Bike Lanes  Active  Bikes| Pavement Markings
9(09)-30 Experiment  Minnesota DOT for Minneapolis  MN  6/11/2012  Bike Signal Indications for Leading Bike Phase  Active  Bikes| Traffic Control Signals
9(09)-29 Experiment  City of Edina  MN  5/7/2012  Green Shared Lanes and Advisory Bike Lanes  Active  Bikes| Colored Pavements| Pavement Markings
9(09)-28 Experiment  City of Canton  OH  12/8/2011  Bike Signal Heads and Two-Stage Turn Queue Boxes  Active  Bikes| Colored Pavements| Pavement Markings| Traffic Control Signals
9(09)-27 Change  NCUTCD  XX  6/23/2011  Revised M1-8 and M1-8a Numbered Bicycle Route Signs    Bikes| Signs| Signs - Guide
9(09)-26 Change  NCUTCD  XX  6/23/2011  Pavement Markings for Bicycle Lanes    Bikes| Pavement Markings
9(09)-25 Experiment  City and County of Denver  CO  10/25/2011  Bike Signal Heads and Chevron Striping  Active  Bikes| Pavement Markings| Traffic Control Signals
9(09)-24 Experiment  City of Boston  MA  9/27/2011  Shared Bike Lanes and Change Lanes to Pass Sign  Active  Bikes| Colored Pavements| Pavement Markings| Signs| Signs - Regulatory; Barricades; Gates
9(09)-23 Experiment  City of Santa Monica  CA  8/17/2011  Bike Boxes  Active  Bikes| Colored Pavements| Pavement Markings
9(09)-22 Experiment  Clackamas County  OR  7/5/2011  Bike Signal Heads and Diagonal Bike Pavement Markings  Inactive  Bikes| Pavement Markings| Traffic Control Signals
9(09)-21 Experiment  Minnesota DOT for University of Minnesota - Twin Cities Campus  MN  5/3/2011  Bike Boxes and Modifications of Lane-Use Signs  Active  Bikes| Colored Pavements| Pavement Markings| Signs| Signs - Regulatory; Barricades; Gates
9(09)-20 Interpretation  Louisville Metro Government  KY  7/15/2011  Modification of the Bicycle Destination (D1-3c) Sign    Bikes| Signs| Signs - Guide
9(09)-19 Interpretation  Louisville Metro Government  KY  5/2/2011  Use of Bikes May Use Full Lane (R4-11) Sign on Roadways with Speed Limits Higher than 35 Miles per Hour    Bikes| Signs| Signs - Regulatory; Barricades; Gates
9(09)-18 Experiment  City of Fort Collins  CO  4/25/2011  Bike Boxes  Active  Bikes| Colored Pavements| Pavement Markings
9(09)-17 Experiment  City of Missoula  MT  3/24/2011  Bike Boxes and Green Pavement Markings  Active  Bikes| Colored Pavements| Pavement Markings
9(09)-16 Experiment  Oregon DOT for Ashland  OR  3/10/2011  Bike Signal Heads  Active  Bikes| Traffic Control Signals
9(09)-15 Experiment  City of New Haven  CT  3/8/2011  Bike Boxes  Active  Bikes| Colored Pavements| Pavement Markings
9(09)-14 Experiment  St. Clair County  MI  5/17/2010  Bike Wayfinding Signs  Active  Bikes| Signs| Signs - Guide
9(09)-13 Experiment  City of Madison  WI  10/7/2010  Bike Signal Heads  Active  Bikes| Traffic Control Signals
9(09)-12 Experiment  City of Madison  WI  10/7/2010  Bike Boxes  Active  Bikes| Colored Pavements| Pavement Markings
9(09)-11 Experiment  Pennsylvania DOT for Philadelphia  PA  10/4/2010  Green Bike Lanes and Green Shared Lane  Active  Bikes| Colored Pavements| Pavement Markings
9(09)-10 Experiment  City of Long Beach  CA  8/17/2010  Buffered Bike Lane Markings  Active  Bikes| Pavement Markings
9(09)-9 Experiment  Arlington County  VA  8/19/2010  Bike Signal Heads  Active  Bikes| Traffic Control Signals
9(09)-8 Experiment  Louisville Metro Government  KY  7/13/2010  Bike Boxes  Active  Bikes| Colored Pavements| Pavement Markings
9(09)-7 Experiment  City of Alexandria  VA  6/18/2010  Bike Signal Heads  Active  Bikes| Traffic Control Signals
9(09)-6 Experiment  Minnesota DOT for Minneapolis  MN  5/11/2010  Bike Pavement Markings and Bike Signal Heads  Active  Bikes| Pavement Markings| Traffic Control Signals
9(09)-5 Experiment  Minnesota DOT for Hennepin County  MN  5/20/2010  Bike Boxes  Active  Bikes| Pavement Markings
9(09)-4 Experiment  City of Golden  CO  3/23/2010  Green Bike Lanes  Active  Bikes| Colored Pavements| Pavement Markings
9(09)-3 Experiment  City of Missoula  MT  1/29/2010  Green Bike Lanes (the original correspondence called this Official Ruling 9(09)-1)  Final Report Received  Bikes| Colored Pavements| Pavement Markings
9(09)-2 Change  NCUTCD  XX  1/23/2010  M1-9 US Bicycle Marker - Revised Design    Bikes| Signs| Signs - Guide
9(09)-1 Change  NCUTCD  XX  1/23/2010  Signing for Bicycle Access to Freeways (also see Official Ruling 9(09)-3)    Bikes| Signs| Signs - Regulatory; Barricades; Gates
9-129 Experiment  City of Lexington - Fayette Co.  KY  11/9/2009  Bike Boxes and Floating Bike Lanes  Active  Bikes| Pavement Markings
9-128 Experiment  Georgia DOT for Atlanta  GA  11/4/2009  Shared Lane Markings  Inactive  Bikes| Pavement Markings
9-127 Experiment  City of Washington  DC  11/4/2009  Bike Boxes and Bike Signal Heads  Active  Bikes| Pavement Markings| Traffic Control Signals
9-126 Experiment  City of New Haven  CT  10/7/2009  Shared Lane Markings and Bikes May Use Full Lane Signs  Inactive  Bikes| Pavement Markings| Signs| Signs - Regulatory; Barricades; Gates
9-125 Experiment  Minnesota DOT for Minneapolis  MN  10/27/2009  Shared Lane Markings and Bike Boxes  Active  Bikes| Pavement Markings
9-124 Experiment  Minnesota DOT for Duluth  MN  9/30/2009  Shared Lane Markings  Inactive  Bikes| Pavement Markings
9-123 Experiment  City of Nashville  TN  9/22/2009  Green Backgrounds behind Bike Lane Symbols  Active  Bikes| Colored Pavements| Pavement Markings
9-122 Experiment  Minnesota DOT for Minneapolis  MN  7/20/2009  Shared Lane Markings and Bike Guide Signs  Inactive  Bikes| Pavement Markings| Signs| Signs - Guide
9-121 Experiment  Texas DOT for Austin  TX  5/29/2009  Bike Boxes  Final Report Received  Bikes| Pavement Markings
9-120 Experiment  Texas DOT for Austin  TX  5/29/2009  Green Bike Lanes  Final Report Received  Bikes| Colored Pavements| Pavement Markings
9-119 Experiment  Texas DOT for Austin  TX  5/29/2009  Shared Lane Markings  Final Report Received  Bikes| Pavement Markings
9-118 Experiment  City of Marquette  MI  6/12/2009  Shared Lane Markings  Inactive  Bikes| Pavement Markings
9-117 Experiment  City of Redmond  WA  6/10/2009  Shared Lane Markings and Bikes May Use Full Lane Signs  Inactive  Bikes| Pavement Markings| Signs| Signs - Regulatory; Barricades; Gates
9-116 Interpretation  Citizen  NJ  5/15/2009  Meaning of No Bicycles Symbol Sign    Bikes| Signs| Signs - Regulatory; Barricades; Gates| Symbols
9-115 Experiment  City of Ann Arbor  MI  5/13/2009  Shared Lane Markings  Inactive  Bikes| Pavement Markings
9-114 Experiment  City of Spokane  WA  5/7/2009  Shared Lane Markings  Inactive  Bikes| Pavement Markings
9-113 Experiment  City of Long Beach  CA  2/2/2009  Green Shared Lane Markings and Bikes in Lane Symbol Sign  Final Report Received  Bikes| Colored Pavements| Pavement Markings| Signs| Signs - Warning; Object Markers
9-112 Experiment  City of Long Beach  CA  1/27/2009  Green Markings and Bike Signal Heads  Active  Bikes| Colored Pavements| Pavement Markings| Traffic Control Signals
9-111 Experiment  City of Cincinnati  OH  2/19/2009  Shared Lane Markings  Inactive  Bikes| Pavement Markings
9-110 Experiment  City of Phoenix  AZ  12/24/2008  Crossover Bike Boxes  Final Report Received  Bikes| Pavement Markings
9-109 Experiment  City of Columbus  OH  1/26/2009  Shared Lane Markings  Inactive  Bikes| Pavement Markings
9-108 Experiment  City of Columbus  OH  1/26/2009  Bike Boxes  Active  Bikes| Colored Pavements| Pavement Markings
9-107 Experiment  City of Columbia  MO  2/25/2009  Green Bike Lanes  Active  Bikes| Colored Pavements| Pavement Markings
9-106 Experiment  City of Bellevue  WA  5/30/2008  Shared Lane Markings  Inactive  Bikes| Pavement Markings
9-105 Experiment  City of Portland  OR  1/23/2008  Bike Boxes and Green Bike Lanes  Final Report Received  Bikes| Colored Pavements| Pavement Markings
9-104 Experiment  City of Bethlehem  PA  2/20/2008  Shared Lane Markings  Inactive  Bikes| Pavement Markings
9-103 Experiment  City of Spartanburg  SC  2/7/2008  Shared Lane Markings  Inactive  Bikes| Pavement Markings
9-102 Experiment  City of Columbia  MO  1/17/2008  Shared Lane Markings  Inactive  Bikes| Pavement Markings
9-101 Experiment  City of Miami Beach  FL  12/3/2007  Shared Lane Markings  Inactive  Bikes| Pavement Markings
9-100 Experiment  City and County of San Francisco  CA  10/9/2007  Green Bike Lanes  Active  Bikes| Colored Pavements| Pavement Markings
9-99 Experiment  City of Salt Lake City  UT  8/20/2007  Green Shared Lane Markings  Active  Bikes| Colored Pavements| Pavement Markings
9-98 Experiment  Sheboygan County  WI  6/22/2007  Shared Lane Markings  Inactive  Bikes| Pavement Markings
9-97 Experiment  City of Louisville - Jefferson Co.  KY  5/30/2007  Shared Lane Markings  Inactive  Bikes| Pavement Markings
9-96 Experiment  New York State DOT (for Ithaca)  NY  4/26/2007  Shared Lane Markings  Inactive  Bikes| Pavement Markings
9-95 Experiment  City of Pittsburgh  PA  1/26/2007  Shared Lane Markings  Inactive  Bikes| Pavement Markings
9-94 Experiment  City of Flagstaff  AZ  3/27/2007  Shared Lane Markings  Inactive  Bikes| Pavement Markings
9-93 Change  NCUTCD  XX  1/19/2007  Shared Lane Markings    Bikes| Pavement Markings
9-92 Change  NCUTCD  XX  1/19/2007  Additions to Figure 9B-4 and Revisions to Figure 9B-5    Bikes| Signs| Signs - Guide
9-91 Change  NCUTCD  XX  9/25/2006  Revisions to Mounting Height and Lateral Offset    Bikes| Signs
9-90 Experiment  City of St. Petersburg  FL  11/21/2006  Green Bike Lanes  Final Report Received  Bikes| Colored Pavements| Pavement Markings
9-89 Change  NCUTCD  XX  1/9/2004  Add Mode-Specific Guide Signs    Bikes| Signs| Signs - Guide
9-88 Experiment  City of Alexandria  VA  7/9/2006  Shared Lane Markings  Inactive  Bikes| Pavement Markings
9-87 Change  NCUTCD  XX  6/23/2005  Revise BIKEWAY NARROWS to PATH NARROWS    Bikes| Signs| Signs - Warning; Object Markers
9-86 Change  NCUTCD  XX  6/23/2005  Addition of Reference Location Signs to Part 9    Bikes| Signs| Signs - Guide
9-85 Change  NCUTCD  XX  6/23/2005  Revisions to M Series Guide Signs    Bikes| Signs| Signs - Guide
9-84 Change  NCUTCD  XX  6/23/2005  Use of Bike Lane Signs Downgraded to Guidance    Bikes| Signs| Signs - Regulatory; Barricades; Gates
9-83 Change  NCUTCD  XX  6/23/2005  Bicycle Destination Signing    Bikes| Signs| Signs - Guide
9-82 Experiment  City of Evanston  IL  8/31/2005  Bicycle Wayfinding Signing  Active  Bikes| Signs| Signs - Guide
9-81 Experiment  City of Portland  OR  8/31/2005  Shared Lane Markings  Inactive  Bikes| Pavement Markings
9-80 Experiment  Colorado DOT and City of Fort Collins  CO  2/3/2005  Shared Lane Markings  Inactive  Bikes| Pavement Markings
9-79 Experiment  City of New York  NY  1/27/2005  Green Bike Lanes  Final Report Received  Bikes| Colored Pavements| Pavement Markings
9-78 Change  NCUTCD  XX  6/25/2004  Logo on M1-8 Bicycle Route Sign    Bikes| Signs| Signs - Guide
9-77 Experiment  City of Chicago  IL  12/7/2004  Green Bike Lanes  Active  Bikes| Colored Pavements| Pavement Markings
9-76 Experiment  City and County of Denver  CO  6/22/2004  Bike Traffic Signal Heads [countdowns added in 2008]  Final Report Received  Bikes| Traffic Control Signals
9-75 Interpretation  Citizen  RI  5/7/2004  Walk on Left/Bike on Right Signs and Pavement Markings    Bikes| Pavement Markings| Signs| Signs - Regulatory; Barricades; Gates
9-74 Change  NCUTCD  XX  6/13/2003  Revision to U.S. Bicycle Route Marker    Bikes| Signs| Signs - Guide
9-73 Experiment  City of Chicago  IL  3/11/2004  Bicycle Wayfinding Signing  Final Report Received  Bikes| Signs| Signs - Guide
9-72 Experiment  Golden Gate Bridge District  CA  1/27/2004  Fluorescent Yellow-Green Crosswalks/Paths on Bridge Approaches  Active  Bikes| Pavement Markings
9-71 Interpretation  Nevada DOT  NV  5/24/2002  Trail Crossing Sign    Bikes| Signs| Signs - Warning; Object Markers| Symbols
9-70 Interpretation  Nevada DOT  NV  5/24/2002  Guide Sign for Use on Shared-Use Paths    Bikes| Signs| Signs - Guide
9-69 Experiment  Colorado DOT  CO  11/14/2001  Rumble Strip Warning Signs and Markings  Active  Bikes| Pavement Markings| Signs| Signs - Warning; Object Markers
9-68 Interpretation  Illinois DOT  IL  10/18/2001  Use of Signs with Bike Lane Markings    Bikes| Signs| Signs - Regulatory; Barricades; Gates
9-67 Experiment  Vermont Agency of Transportation  VT  3/30/2001  Green Bike Lanes on a Bridge  Final Report Received  Bikes| Colored Pavements| Pavement Markings
9-41 Interpretation  City of New York  NY  1/24/2000  Greenway Signing System    Bikes| Signs| Signs - Guide
9-28 Experiment  Clark County  NV  11/29/1998  Share the Road Symbol Sign  Active  Bikes| Signs| Signs - Warning; Object Markers| Symbols
9-27 Experiment  City of Gainesville  FL  10/1/1998  Shared Lane Markings (similar to those used in Denver, CO)  Inactive  Bikes| Pavement Markings| Symbols
9-8 Experiment  Florida DOT  FL  9/14/1998  Florida Bike Lane Marking Symbol  Active  Bikes| Pavement Markings| Symbols
9-7 Interpretation  City of Seattle  WA  6/27/1996  Green Lake Path    Bikes
9-6 Interpretation  Consultant  OR  9/28/1990  Marking Hazardous Grates on Streets without Bike Lanes    Bikes| Pavement Markings
9-5 Experiment  Boulder County  CO  12/3/1985  Share the Road Sign with Rear View of Car and Bicyclist  Inactive  Bikes| Signs| Signs - Warning; Object Markers| Symbols
9-4 Change  NCUTCD  XX  4/5/1984  Revise the U.S. Bicycle Route (M1-9) Sign    Bikes| Signs| Signs - Guide
9-3 Change  American Youth Hostels  XX  2/23/1978  Add a Sign Guiding Bicyclists to Hostels    Bikes| Signs| Signs - Guide
9-2 Change  Montgomery County  MD  2/21/1978  Add a Bike Parking Guide Sign    Bikes| Signs| Signs - Guide
10-68 Change  NCUTCD  XX  2/7/2007  Use of "Safe" in Part 10    General| Light Rail Transit Traffic Control Devices| Railroad Grade Crossings
10-67 Change  NCUTCD  XX  2/7/2007  Revisions to Emergency Notification Sign    Light Rail Transit Traffic Control Devices| Railroad Grade Crossings| Signs
10-66 Interpretation  Colorado DOT  CO  9/1/2006  Use of Light Rail Transit Signals for Bus Queue Jumper Lane     Light Rail Transit Traffic Control Devices| Traffic Control Signals
10-65 Change  NCUTCD  XX  1/20/2006  Wayside Horn Systems for Light Rail Transit Crossings    Light Rail Transit Traffic Control Devices
10-64 Change  NCUTCD  XX  1/20/2006  Use of Retroreflective Strips on the Fronts of Crossbuck Supports    Light Rail Transit Traffic Control Devices| Signs| Signs - Regulatory; Barricades; Gates
10-63 Change  NCUTCD  XX  6/24/2005  Revisions to Use of Light Rail Transit Approaching Blank-out Sign    Light Rail Transit Traffic Control Devices| Signs| Signs - Warning; Object Markers
10-62 Change  NCUTCD  XX  6/24/2005  Crossbuck Signs Not Needed at Every Light Rail Transit Crossing    Light Rail Transit Traffic Control Devices| Signs| Signs - Regulatory; Barricades; Gates
10-61 Interpretation  Valley Metro Rail (Phoenix area)  AZ  5/28/2004  Crossbuck Signs at Highway-Light Rail Transit Grade Crossings    Light Rail Transit Traffic Control Devices| Signs| Signs - Regulatory; Barricades; Gates
10-60 Change  NCUTCD  XX  6/13/2003  Pavement Markings Required Only on Paved Roadways    Light Rail Transit Traffic Control Devices| Pavement Markings| Railroad Grade Crossings
10-59 Interpretation  City of Eugene  OR  12/16/2002  Use of Light Rail Transit Signals for Bus Rapid Transit System Lanes    Light Rail Transit Traffic Control Devices| Traffic Control Signals