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Engineering Commons

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Civil Engineering

Portland State University

Civil and Environmental Engineering Faculty Publications and Presentations

2007

Traffic signs and signals -- Control systems

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Full-Text Articles in Engineering

Evaluating And Adaptive Signal Control System In Gresham, James M. Peters, Jay Mccoy, Robert L. Bertini Jun 2007

Evaluating And Adaptive Signal Control System In Gresham, James M. Peters, Jay Mccoy, Robert L. Bertini

Civil and Environmental Engineering Faculty Publications and Presentations

Cities and Counties are faced with increasing traffic congestion due to rapidly increasing population. Like many agencies, the City of Gresham has struggled with how to manage the increasing congestion with limited funds for major roadway widening projects. Gresham has recognized the need to optimize existing system capacity to get the most out of their current transportation system infrastructure investment.

In 2005, the City of Gresham, in cooperation with numerous agencies in the Portland metropolitan area, evaluated a variety of signal control systems including traditional time-of-day coordination, traffic responsive, and adaptive signal control systems. Based on that evaluation, the steering …