Optimizing the operating frequency of intercity public transport trains by considering the limited rationality of passengers
Optimizing train operating frequency significantly improves the revenue level of intercity railway public transport operation and passenger psychological satisfaction. A passenger flow allocation model for intercity railways under limited rationality conditions was constructed by analyzing the passenger selection behavior under limited rationality conditions. By constructing a train candidate set,the cost related to train passenger flow and operating frequency based on passenger flow allocation was set as the objective,and constraints such as operating passenger flow conditions,passenger flow balance,and interval transportation capacity were considered. A multi-objective optimization model for intercity transit train operating frequency was constructed based on train candidate set and passenger limited rationality. The NSGA-Ⅱ algorithm was utilized to solve the optimization model. The effectiveness of the model and algorithm was verified by taking Chang-Zhu-Tan intercity public transport railway as an example. Through key parameter perturbation analysis,the impact mechanism of different passenger flow origin-destination (OD) and passenger flow condition thresholds on the operating frequency scheme were revealed. The results show that considering the benefits of both passengers and businesses,the frequency of operation scheme was more diverse. As the frequency of operation increased,the constraining effect between the two was significant. As the passenger flow OD increased,the solution space of the model shrank,the convergence of the algorithm and the diversity of the solution set decreased,and the optimization gradient tended to increase the number of stopping trains at each station. In addition,as the passenger flow threshold increased,limited rationality behavior had little impact on the optimization plan,resulting in a significant reduction in enterprise costs. This study provides reference for the management and decision-making of railway operating enterprises in intercity public transport operations.
intercity railwaypublic transport operationlimited rationalitypassenger flow allocationoperating frequencyoptimization model