Journal of Engineering Research

The rapid development of Vehicle-Infrastructure Cooperation (V2I) technology has opened up new possibilities for emergency vehicles (such as fire trucks, ambulances, etc.) to achieve efficient and priority passage on urban roads. Focusing on the priority control issue of emergency vehicles in an intelligent transportation environment, this paper proposes an integrated framework that combines road perception, real-time vehicle dynamic information, and signal control strategies. The aim is to enhance emergency response efficiency while minimizing interference with regular traffic flow. By establishing a V2I-based communication and perception system, real-time monitoring and prediction of the emergency vehicle's position, speed, and route are realized. Combined with a dynamic signal timing algorithm, intelligent optimal control is applied to the intersections along the emergency vehicle's path. Simulation experiments have verified that this strategy exhibits significant advantages in improving the passage efficiency of emergency vehicles, ensuring driving safety, and optimizing the overall traffic operation. It provides a theoretical foundation and practical path for the construction of future intelligent traffic dispatching systems.

Vehicle-infrastructure cooperation; Emergency vehicles; Priority passage; Signal control; Intelligent transportation system