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Improving Coordinated Traffic Signal Timing through Connected Vehicle Technology

Hu, Yuan (2016) Improving Coordinated Traffic Signal Timing through Connected Vehicle Technology. Doctoral Dissertation, University of Pittsburgh. (Unpublished)

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For coordinated traffic control systems of traffic signals, timing offset is an important parameter that should account for the effect of queued vehicles at signals, travel speeds between intersections and the roadway geographic characteristics. In order to improve coordinated signal timing in the short term, this dissertation research developed an approach to optimize timing offset based on queue length information that will soon be available from connected vehicles (CVs) in the near future. The benefits of this approach were measured in an urban street corridor network and a suburban highway corridor network using the simulation program VISSIM.
The simulation results shows that using the queue measurements in signal retiming provided a better optimized signal coordination during the peak hours. Up to 21.6% less delay and 13.9% less stops when compared to the current signal retiming approach. Based on multiple runs of simulation under different connected vehicle market penetration rates, at least 60% penetration rate was required for this approach.


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Item Type: University of Pittsburgh ETD
Status: Unpublished
CreatorsEmailPitt UsernameORCID
Hu, Yuanyuh45@pitt.eduYUH450000-0002-5999-0964
ETD Committee:
TitleMemberEmail AddressPitt UsernameORCID
Committee MemberCasson, Leonard
Committee MemberBrigham, John
Committee MemberKhanna, Vikas
Committee MemberSzewcow, Mark
Committee MemberSejdić, Ervin
Committee ChairMagalotti, Mark mjm25@pitt.eduMJM25
Date: 15 June 2016
Date Type: Publication
Defense Date: 30 March 2016
Approval Date: 15 June 2016
Submission Date: 25 March 2016
Access Restriction: No restriction; Release the ETD for access worldwide immediately.
Number of Pages: 75
Institution: University of Pittsburgh
Schools and Programs: Swanson School of Engineering > Civil and Environmental Engineering
Degree: PhD - Doctor of Philosophy
Thesis Type: Doctoral Dissertation
Refereed: Yes
Uncontrolled Keywords: Connected vehicle technology, Coordinated traffic signal system, Corridor network
Date Deposited: 15 Jun 2016 15:27
Last Modified: 15 Nov 2016 14:32


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