Abstract
A combination of express and local trains (E/L mode) is generally used to operate a suburban rail service, it can meet the rapid and direct service needs of long-distance travelers as well the needs of short-distance travelers. Generally, a stop plan is the core of the E/L mode. A stop plan optimization model in E/L mode, which aims to minimize the total passenger travel time and the number of operating trains during the peak period with the safe headway and departure frequency constraints, is proposed in this study. Meanwhile, an algorithm based on a genetic algorithm is designed to solve the proposed model. A case study of the Jiangjin Line, a suburban railway in Chongqing, China, is carried out. The results show the efficiency and feasibility of the proposed method. The calculation results also show that the total passenger travel time under E/L mode with the overtaking condition is significantly reduced compared with the all-stops (AS) mode and E/L mode without overtaking condition. The superiority of the E/L mode can be enhanced by reducing the dwell time at stations and adopting the overtaking condition.
Highlights
With its development of metropolises and urban agglomerations, China is With its development of metropolises and urban agglomerations, China is planplanning and constructing regional rapid rail transit networks within urban areas and ning and constructing regional rapid rail transit networks within urban areas and between between urban agglomerations on a large scale
Expressexpress trains trains can satisfy the needs of passengers who who travel overover long long distances, with rapid and direct service, whereas local trains accommodate the needs distances, with rapid and direct service, whereas local trains accommodate the needs of of those traveling over short distances along the same route those traveling over short distances along the same route [1]
A 0–1 integer programming model is built for optimizing the stop plan and departure frequency of a suburban railway under a skip-stop operation mode
Summary
With its development of metropolises and urban agglomerations, China is planplanning and constructing regional rapid rail transit networks within urban areas and ning and constructing regional rapid rail transit networks within urban areas and between between urban agglomerations on a large scale. Developed a model incorporating several factors (e.g., inter-station distances, changes in passenger flow, and departure intervals) to optimize the stop plan for an E/L mode of the. Boos [10], Ulusoy et al [11], and Abdelhafiez et al [12] established the nonlinear integer programming models to minimize passenger travel times, with several parameters (e.g., the passenger flow demand, departure intervals, and the number of operating trains) as constraints, and they designed algorithms to solve these models. In addition to researches with static passenger demand, Tian et al [20], Zhao et al [21], Jong et al [22,23] and Sogin et al [24] developed models for optimizing the stop plan in E/L mode that are applicable to dynamic passenger flow patterns. The conclusions and future work are presented in the last section
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