Signal State Transition Software Development

ATI's Phase II effort will consist of developing an open source Signal Control Program Environment (SCOPE). This SCOPE will incorporate either an open source traffic signal control program or a more refined version of the signal control logic ATI developed in our Phase I effort. ATI will develop SCOPE so that the Cooperative Intersection Collision Avoidance System (CICAS) and Adaptive Control Systems (ACS) Lite can easily be integrated and operate with NCHRP Signal Transition Logic. ATI will incorporate additional NCHRP 3-66 algorithms into the SCOPE selected by our COTR and other members of the CICAS and ACS consortium. The software wil execute under Linux and be developed using an MPC885 development platform. The final software wil run on an Advanced Traffic Controller. Software testing during the development stage will be done with CORISM and/or the Texas Model. Formal validation will be performed at a UTC center in either California, Minnesota, Virginia, or Idaho. The software developed by ATI will be dual redundant. All requirements, design, code, and unit tests will be kept under configuration control. All software requirement, design, implementation, testing, configuration management and documentation tools used on this project are open source and free.