Stakeholder Requirements for Traffic Signal Preemption and Priority in the Washington, DC Region Final rept

摘要

Traffic and traffic congestion often challenge the delivery of essential public services such as emergency vehicles or transit. For this reason, Intelligent Transportation Systems (ITS) research has long focused on measures to promote and improve the delivery of these services over congested roadways. This paper addresses two such measures, signal preemption and signal priority. By and large, the literature has focused on the capabilities of various existing systems and their impact on real or hypothetical traffic or accident patterns. This paper, however, looks at the differing issues, needs, and concerns that elected officials and transit, traffic and emergency personnel in a region have regarding the implementation, installation, maintenance and use of both types of systems. These findings are then used to design stakeholder-driven system objectives as well as general system requirements. Future research will use these general system requirements to develop detailed technical requirements.