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contributor authorNancy Dutta; Richard Atta Boateng; Michael D. Fontaine
date accessioned2019-03-10T11:55:20Z
date available2019-03-10T11:55:20Z
date issued2019
identifier otherJTEPBS.0000220.pdf
identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4254496
description abstractAn active traffic management (ATM) system was activated on Interstate 66 (I-66) in northern Virginia in September 2015. The ATM system included advisory variable speed limits (AVSLs), lane-use control signals (LUCS), and dynamic hard shoulder running (HSR). This paper quantifies the operational and safety effects of the ATM system on I-66 using approximately 2 years of crash and operational data following system activation. The operational analysis showed that off-peak hours experienced significant travel time improvement after the ATM system was activated, but peak periods in the peak direction of travel generally did not see improvement. Further analysis revealed that most of these improvements occurred on the HSR sections. The safety evaluation results showed 4%, 4%, and 6% reductions in total (all severity), multiple-vehicle (all severity), and rear-end (all severity) crashes, respectively, across the entire corridor. Segment-level analysis again showed that the most safety benefits were observed at locations with HSR (31%–38% crash reductions), and no significant reductions were found on the sections with only AVSLs and LUCS.
publisherAmerican Society of Civil Engineers
titleSafety and Operational Effects of the Interstate 66 Active Traffic Management System
typeJournal Paper
journal volume145
journal issue3
journal titleJournal of Transportation Engineering, Part A: Systems
identifier doi10.1061/JTEPBS.0000220
page04018089
treeJournal of Transportation Engineering, Part A: Systems:;2019:;Volume ( 145 ):;issue: 003
contenttypeFulltext


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