When the location of emergency incident and emergency response resource is vague, by establishing a virtual auxiliary route and the algorithm of shortest path, Dijkstra algorithm, the optimal dispatch path between the location of the incident and emergency response resource could be found. 在事故发生点周围及应急资源周围的道路细节不清晰的情况下,建立虚拟辅助道路,利用最短路径算法(Dijkstra算法)找出应急资源与事故发生点的最短路径。