Part 4. Highway Traffic Signals
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[ Chapter
4A ]
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[ Chapter
4B ]
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[ Chapter
4C ]
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[ Chapter
4D ]
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[ Chapter
4E ]
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| [ Chapter 4F ] | [ Chapter 4G ] | [ Chapter 4H ] | [ Chapter 4I ] | [ Chapter 4J ] |
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[ Chapter
4K ]
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[ Chapter
4L ]
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[ Figures
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[ Tables
]
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| CHAPTER 4A. | GENERAL |
|---|---|
| Section 4A.01 | Types |
| Section 4A.02 | Definitions Relating to Highway Traffic Signals |
| CHAPTER 4B. | TRAFFIC CONTROL SIGNALS — GENERAL |
| Section 4B.01 | General |
| Section 4B.02 | Basis of Installation or Removal of Traffic Control Signals |
| Section 4B.03 | Advantages and Disadvantages of Traffic Control Signals |
| Section 4B.04 | Alternatives to Traffic Control Signals |
| Section 4B.05 | Adequate Roadway Capacity |
| CHAPTER 4C. | TRAFFIC CONTROL SIGNAL NEEDS STUDIES |
| Section 4C.01 | Studies and Factors for Justifying Traffic Control Signals |
| Section 4C.02 | Warrant 1, Eight-Hour Vehicular Volume |
| Section 4C.03 | Warrant 2, Four-Hour Vehicular Volume |
| Section 4C.04 | Warrant 3, Peak Hour |
| Section 4C.05 | Warrant 4, Pedestrian Volume |
| Section 4C.06 | Warrant 5, School Crossing |
| Section 4C.07 | Warrant 6, Coordinated Signal System |
| Section 4C.08 | Warrant 7, Crash Experience |
| Section 4C.09 | Warrant 8, Roadway Network |
| CHAPTER 4D. | TRAFFIC CONTROL SIGNAL FEATURES |
| Section 4D.01 | General |
| Section 4D.02 | Responsibility for Operation and Maintenance |
| Section 4D.03 | Provisions for Pedestrians |
| Section 4D.04 | Meaning of Vehicular Signal Indications |
| Section 4D.05 | Application of Steady Signal Indications |
| Section 4D.06 | Application of Steady Signal Indications for Left Turns |
| Section 4D.07 | Application of Steady Signal Indications for Right Turns |
| Section 4D.08 | Prohibited Steady Signal Indications |
| Section 4D.09 | Unexpected Conflicts During Green or Yellow Intervals |
| Section 4D.10 | Yellow Change and Red Clearance Intervals |
| Section 4D.11 | Application of Flashing Signal Indications |
| Section 4D.12 | Flashing Operation of Traffic Control Signals |
| Section 4D.13 | Preemption and Priority Control of Traffic Control Signals |
| Section 4D.14 | Coordination of Traffic Control Signals |
| Section 4D.15 | Size, Number, and Location of Signal Faces by Approach |
| Section 4D.16 | Number and Arrangement of Signal Sections in Vehicular Traffic Control Signal Faces |
| Section 4D.17 | Visibility, Shielding, and Positioning of Signal Faces |
| Section 4D.18 | Design, Illumination, and Color of Signal Sections |
| Section 4D.19 | Lateral Placement of Signal Supports and Cabinets |
| Section 4D.20 | Temporary Traffic Control Signals |
| Section 4D.21 | Traffic Signal Signs, Auxiliary |
| CHAPTER 4E. | PEDESTRIAN CONTROL FEATURES |
| Section 4E.01 | Pedestrian Signal Heads |
| Section 4E.02 | Meaning of Pedestrian Signal Head Indications |
| Section 4E.03 | Application of Pedestrian Signal Heads |
| Section 4E.04 | Size, Design, and Illumination of Pedestrian Signal Head Indications |
| Section 4E.05 | Location and Height of Pedestrian Signal Heads |
| Section 4E.06 | Accessible Pedestrian Signals |
| Section 4E.07 | Countdown Pedestrian Signals |
| Section 4E.08 | Pedestrian Detectors |
| Section 4E.09 | Accessible Pedestrian Signal Detectors |
| Section 4E.10 | Pedestrian Intervals and Signal Phases |
| CHAPTER 4F. | TRAFFIC CONTROL SIGNALS FOR EMERGENCY VEHICLE ACCESS |
| Section 4F.01 | Applications of Emergency-Vehicle Traffic Control Signals |
| Section 4F.02 | Design of Emergency-Vehicle Traffic Control Signals |
| Section 4F.03 | Operation of Emergency-Vehicle Traffic Control Signals |
| CHAPTER 4G. | TRAFFIC CONTROL SIGNALS FOR ONE-LANE, TWO-WAY FACILITIES |
| Section 4G.01 | Application of Traffic Control Signals for One-Lane, Two-Way Facilities |
| Section 4G.02 | Design of Traffic Control Signals for One-Lane, Two-Way Facilities |
| Section 4G.03 | Operation of Traffic Control Signals for One-Lane, Two-Way Facilities |
| CHAPTER 4H. | TRAFFIC CONTROL SIGNALS FOR FREEWAY ENTRANCE RAMPS |
| Section 4H.01 | Application of Freeway Entrance Ramp Control Signals |
| Section 4H.02 | Design of Freeway Entrance Ramp Control Signals |
| CHAPTER 4I. | TRAFFIC CONTROL FOR MOVABLE BRIDGES |
| Section 4I.01 | Application of Traffic Control for Movable Bridges |
| Section 4I.02 | Design and Location of Movable Bridge Signals and Gates |
| Section 4I.03 | Operation of Movable Bridge Signals and Gates |
| CHAPTER 4J. | LANE-USE CONTROL SIGNALS |
| Section 4J.01 | Application of Lane-Use Control Signals |
| Section 4J.02 | Meaning of Lane-Use Control Signal Indications |
| Section 4J.03 | Design of Lane-Use Control Signals |
| Section 4J.04 | Operation of Lane-Use Control Signals |
| CHAPTER 4K. | FLASHING BEACONS |
| Section 4K.01 | General Design and Operation of Flashing Beacons |
| Section 4K.02 | Intersection Control Beacon |
| Section 4K.03 | Warning Beacon |
| Section 4K.04 | Speed Limit Sign Beacon |
| Section 4K.05 | Stop Beacon |
| CHAPTER 4L. | IN-ROADWAY LIGHTS |
| Section 4L.01 | Application of In-Roadway Lights |
| Section 4L.02 | In-Roadway Warning Lights at Crosswalks |
| CHAPTER 4C. | TRAFFIC CONTROL SIGNAL NEEDS STUDIES |
|---|---|
| Figure 4C-1 | Warrant 2, Four-Hour Vehicular Volume |
| Figure 4C-2 | Warrant 2, Four-Hour Vehicular Volume (70% Factor) |
| Figure 4C-3 | Warrant 3, Peak Hour |
| Figure 4C-4 | Warrant 3, Peak Hour (70% Factor) |
| CHAPTER 4D. | TRAFFIC CONTROL SIGNAL FEATURES |
| Figure 4D-1 | Maximum Mounting Height of Signal Faces Located Between 12 Meters (4 Feet) and 16 Meters (53 Feet) from Stop Line |
| Figure 4D-2 | Horizontal Location of Signal Faces |
| Figure 4D-3 | Typical Arrangements of Signal Lenses in Signal Faces |
| CHAPTER 4E. | PEDESTRIAN CONTROL FEATURES |
| Figure 4E-1 | Typical Pedestrian Signal Indications |
| Figure 4E-2 | Recommended Pushbutton Locations for Accessible Pedestrian Signals |
| CHAPTER 4J. | LANE-USE CONTROL SIGNALS |
| Figure 4J-1 | Left-Turn Lane-Use Control Signals |
| CHAPTER 4C. | TRAFFIC CONTROL SIGNAL NEEDS STUDIES |
|---|---|
| Table 4C-1 | Warrant 1, Eight-Hour Vehicular Volume |
| CHAPTER 4D. | TRAFFIC CONTROL SIGNAL FEATURES |
| Table 4D-1 | Minimum Sight Distance |
