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Variable advisory speed limit (VASL) systems encourage drivers to slow down gradually as they approach rural work zones.

The following recommendations were based on the case studies investigated. Use VASL systems to lower speeds and achieve better compliance with posted speed limits in areas without congestion in…
Content type
Lesson
Date Posted
04/29/2014
Taxonomy (ARC-IT) Variable Speed Limits (TM20), Reduced Speed Zone Warning / Lane Closure (VS09)
Geolocation links
St. Louis, Missouri, United States
ITS Deployment Evaluation

INTELLIGENT TRANSPORTATION SYSTEMS JOINT PROGRAM OFFICE

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U.S. Department of Transportation Office of the Assistant Secretary for Research and Technology (OST-R)
 
 
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