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The Impact of Pedestrian Activities in Adaptive Traffic Signal Control System Operations

Hu, Yuan (2014) The Impact of Pedestrian Activities in Adaptive Traffic Signal Control System Operations. Master's Thesis, University of Pittsburgh. (Unpublished)

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This research has explored how the presence of pedestrians can influence Adaptive signal Control Technology (ASCT) system performance. The research focused on an example case: the SURTRAC (Scalable Urban Traffic Control) system, an ASCT system developed by Carnegie Mellon University, which is currently operating a 9-intersection grid road network in the East Liberty section of Pittsburgh, Pennsylvania.
The Trafficware program Synchro was used to simulate the operations of the system under four scenarios by inputting traffic volume collected and timing plans utilized in real-time by SURTRAC. Adaptive traffic control selected timings and operations with pedestrian actuations were compared to conditions without pedestrian actuation. Also the performance of the conventional time-of-day timing plans, prior to installation of SURTRAC, with and without pedestrian intervals was compared.
The purpose of this research was to determine the impact of pedestrian calls on ASCT systems and to provide potential guidelines for the appropriate level of pedestrian activity that can be accommodated during the planning phase of ASCT project development. It could also be used as a tool to determine how pedestrian activity may impact system performance. The research results will help traffic and system developers to develop better optimization methods for ASCT systems to consider pedestrian delays.


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Item Type: University of Pittsburgh ETD
Status: Unpublished
CreatorsEmailPitt UsernameORCID
Hu, Yuanyuh45@pitt.eduYUH45
ETD Committee:
TitleMemberEmail AddressPitt UsernameORCID
Committee ChairMagalotti, Mark mjm25@pitt.eduMJM25
Committee MemberCasson, Leonardcasson@pitt.eduCASSON
Committee MemberJohnson,
Date: 16 June 2014
Date Type: Publication
Defense Date: 3 April 2014
Approval Date: 16 June 2014
Submission Date: 2 April 2014
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: MSCE - Master of Science in Civil Engineering
Thesis Type: Master's Thesis
Refereed: Yes
Uncontrolled Keywords: adaptive traffic signal control system ASCT pedestrian activities actuations intervals
Date Deposited: 16 Jun 2014 17:39
Last Modified: 15 Nov 2016 14:18


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