Seattle Mayor Mike McGinn has announced that the city’s Department of Transportation (SDOT) has retained the transportation firm Transpo to conduct a study toward implementing an adaptive traffic signal system. Transpo’s work is intended to help the city move forward on deploying an advanced system, where a corridor’s signals will respond immediately and independently to changing traffic flows, as well as enhance signal synchronization and real-time signage, and increase public access to construction information and traffic conditions. The study is part of SDOT’s ‘Access Seattle’ agenda, which was launched by the mayor and the agency in February 2013. The city originally identified the need for adaptive traffic control as part of its March 2010 ‘SDOT Intelligent Transportation System (ITS) Strategic Plan’.
The study will identify projects to mitigate construction impacts, help plan adaptive signal control, upgrade the Traffic Management Center (TMC) and provide a road map for implementation of recommended improvements. Covered through existing funds, it will cost approximately US$300,000 and the city expects the study’s results by the third quarter of 2013. While the total cost for implementation of the road map will not be known until later this year, the city is planning to reprogram savings from the Spokane Street Viaduct project that was completed in 2012, in order to implement road map recommendations. In addition, US$500,000 of appropriation will be requested to enable initial design work on road map recommendations, so that work can begin as soon as possible.
“We are working hard to help everyone get where they are going safely and smoothly,” said McGinn. “That’s why we are looking at upgrading our traffic signal system so that traffic flows more efficiently, which benefits all users of our roadways. I thank SDOT director Peter Hahn for his development of the Access Seattle strategy and his implementation of the Transportation Action Agenda.” The Access Seattle project includes technology improvements to help better manage transportation infrastructure, such as real-time signage, signal systems upgrades and increased public access to construction information and traffic conditions.
March 19, 2013
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