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This study evaluated a queue warning system (QWS) installed throughout the construction work zone (between mile markers 161 and 181) on U.S. Highway I-25. The QWS was evaluated during September and December 2019 for how well it mitigated sudden vehicle or traffic stops. The average vehicle speed and the average speed reduction during the system activation period were used as measures of effectiveness (MOEs).
Other Reference Number
Report No. CDOT-2020-17
Priority Research Area
Publication Sort Date
Publisher
Prepared by Apex Design for Colorado Department of Transportation
Result Type
Reviewer
Title
I-25 South Gap Queue Warning System Evaluation
Project Category
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