Enabling a self-organized traffic system in existing legacy hardware

This work presents a hardware design that allows us to retrofit legacy controllers and facilitate implementation of distributed traffic signal optimization algorithms. This work is specifically focused on supporting the deployment of self-organized traffic algorithms of traffic control which can leverage the data from connected vehicles to reduce traffic delays. The paper describes the legacy hardware, its limitations, needs for implementation of distributed algorithms, as well as the design of a supplementary controller based on small plug-in computers that allows distributed decision making. The supplementary controller uses a plug-in computer and establishes a cost effective means of deploying efficient distributed algorithms on existing controllers.