Adaptive Traffic Signal System for Cupertino California

The City of Cupertino, in California, operates a Naztec Streetwise advanced traffic management system (ATMS) for the arterials within the city. These arterials provide important connections to several freeways and major employment centers in Silicon Valley. The traffic patterns vary during the peaks, accommodating long distance commuters destined elsewhere in the Bay Area, commuters to local generators, and local colleges and schools. A new module is being developed to provide full adaptive traffic signal control system for the Streetwise ATMS, and a demonstration project will encompass several of the key arterials. The objectives of the project are to: build on the existing ATMS and infrastructure as far as possible; provide a fully adaptive system capable of running totally unattended; provide facilities for operators to modify or override the adaptive system at any time; and provide the ability to accommodate both normal arterial traffic patterns and adjacent ramp metering impacts.