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Details for Request 4-172


Request Type: Experiment
Requesting Agency: Snohomish County
State: WA
Date of Request: 1/11/2000
Topic: LED-Enhanced Pedestrian Crossing Warning Sign at Crosswalk with In-Roadway Warning Lights
Affected Portions of 2009 MUTCD: Section 2A.07
FHWA Ruling: 5/22/2000 Approved revised request to experiment (also see Official Ruling 4-166)
Experiment Status: Inactive
Reason for Inactive Status: 2009 MUTCD specified details of using LEDs within signs.
Keywords: In-Roadway Warning Lights| Pedestrians| Signs| Signs - Warning; Object Markers