Signal Priority Control for Emergency Vehicle Operation
نویسندگان
چکیده
Emergency Vehicle is one of the rescue resources in a city. It is important to ensure safe and rapid emergency operations in case of emergency calls. This paper presents a signal priority control strategy for emergency vehicle operations in urban roads. The preset plans are discussed first to provide an optimal route considering the one-way coordinated signal setting, which focuses on the green time and offset probability dispersion. A VISSIM simulation example explains the selection of routes. The simulation result shows the travel time improvement of the coordinated control. The on-line actuated signal control is then put forward in order to adjust the real time signal setting to deal with the perturbation of traffic conditions. The priority control strategy suggests a route selection and signal setting method in the context of emergency vehicle operation.
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