抄録
In Korea, there are few preemption strategies for an emergency vehicle(EV). Moreover, there is no strategy to apply to real circumstances. Without preemption, EV's drivers have to drive cars depending on only their own judgment. Also it causes danger of other vehicles on the street at the same time. Previous studies tried to overcome it but have progressed with shortage of useful traffic information. Therefore, we set up a preemption strategy based on real-time vehicle information. Especially, this strategy minimizes stops of EV caused by minimum greens for other phases controlling signal earlier. Proposed algorithm result in increasing speed of EV by 17.14-59.32% and increasing delay of total vehicle by 3.62-7.90%. Despite negative effect on total delay, it shows meaningful result which offers a new possibility to give more time for executing preemption strategy by eliminating limitations generated by minimum green time, queue and a way of point detection.
