Arterial traffic signal optimization: a person-based approach

Christofa, E., Aboudolas, K. and Skabardonis, A. (2013) Arterial traffic signal optimization: a person-based approach. In: 92nd Annual Meeting of the Transportation Research Board, Washington, DC, USA, 13-17 Jan 2013,

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This paper presents a traffic responsive signal control system that optimizes signal settings based on minimization of person delay on arterials. The system's underlying mixed integer linear program minimizes person delay by explicitly accounting for the passenger occupancy of autos and transit vehicles. This way it can provide signal priority to transit vehicles in an efficient way even when they travel in conflicting directions. Furthermore, it recognizes the importance of schedule adherence for reliable transit operations and accounts for it by assigning an additional weighting factor on transit delays. This introduces another criterion for resolving the issue of assigning priority to conflicting transit routes. At the same time, the system maintains auto vehicle progression by introducing the appropriate delays for when interruptions of platoons occur. In addition to the fact that it utilizes readily available technologies to obtain the input for the optimization, the system's feasibility in real-world settings is enhanced by its low computation time. The proposed signal control system was tested on a segment of San Pablo Avenue arterial located in Berkeley, California. The findings have shown the system's capability to outperform static optimal signal settings and have demonstrated its success in reducing person delay for bus and in some cases even auto users.

Item Type:Conference Proceedings
Additional Information:This paper was peer reviewed by the Transportation Research Board and presented at the TRB Annual Meeting, Washington D.C., January, 2013. Paper #13-3395
Keywords:Arterial highways, buses, traffic actuated controllers, traffic delay, traffic signal preemption, traffic signal timing
Glasgow Author(s) Enlighten ID:Ampountolas, Dr Konstantinos
Authors: Christofa, E., Aboudolas, K., and Skabardonis, A.
College/School:College of Science and Engineering > School of Engineering > Infrastructure and Environment
Copyright Holders:Copyright © 2013 The Authors
Publisher Policy:Reproduced with the permission of the publisher.

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