在分析了超限车运行特点及其径路选择的影响因素的基础上,建立了基于Dijkstra算法的多约束最优路径决策模型,其中引入了广义里程的概念并给出具体算法步骤。以沈阳至哈尔滨的局部路网为实例,应用Matlab软件进行辅助求解。最后,应用综合评判法对选出的两条路径进行了进一步选优。 Based on the analysis of the characteristics of overrun operation and the influencing factors of the path selection, a multi-constrained optimal path decision model based on Dijkstra algorithm is established, in which the concept of generalized mileage is introduced and the specific algorithm steps are given. Taking the local road network from Shenyang to Harbin as an example, the Matlab software is used to solve the problem. Finally, the comprehensive evaluation method is used to further optimize the two paths selected.