市域(郊)铁路快慢车运行停站策略优化

市域(郊)铁路具有高速、公交化运行的特点，相比在地铁线路上研究快慢车运行的停站策略，市域(郊)铁路具有多次越行的特征。首先分析市域(郊)铁路多次越行的原因，然后以多次越行对乘客待避时间的影响为基础，将乘客总出行时间最小作为优化目标，构建1︰N开行比例下快慢车停站策略的优化模型，并采用郊狼优化算法进行建模，最后基于实际线路运营数据进行仿真计算。结果表明：在满足发车间隔一定的条件下，相比于站站停运行方式，采用快慢车多次越行的停站策略，乘客在车总时间可减少22.25%，乘客总出行时间可减少8.82%，从而验证了市域(郊)铁路快慢车运行停站策略的有效性。

Optimization of Stop Strategy Suitable for Operation of Express-localTrain of Suburban Railway

Suburban railways are characterized by high-speed public transportation operations. Compared with the stop strategy of express-local train operation on subway lines, the Suburban Railway has the characteristic of multiple overtakings. First, this study analyzed the reasons for multiple overtaking of the Suburban Railway, and based on the impact of multiple overtaking on the waiting time of passengers, the minimum total trip time of passengers was taken as the optimization objective. Then, we constructed the optimization model of the stop strategy under 1: N express-local trains. The coyote optimization algorithm was used for modeling. Finally, a simulation calculation was performed based on the actual line operation data. Under the condition of meeting a certain departure interval, compared with the only local trains, the total time of passengers onboard can be reduced by 22.25% and the total trip time of passengers can be reduced by 8.82%. The results showed that the stop strategy proposed in this paper is effective for the operation of express-local trains on suburban railways.