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影响因子：5.334

DOI码：10.1016/j.ejor.2018.06.034

所属单位：荷兰代尔夫特理工大学交通与规划系

发表刊物：European Journal of Operational Research

刊物所在地：the Netherlands

关键字：Transportation Energy efficient timetabling Train trajectory optimization Pseudospectral method

摘要：This paper proposes a novel approach for energy-efficient timetabling by adjusting the running time allocation of given timetables using train trajectory optimization. The approach first converts the arrival and departure times to time window constraints in order to relax the given timetable. Then a train trajectory optimization method is developed to find optimal arrival/departure times and optimal energy-efficient speed profiles within the relaxed time windows. The proposed train trajectory optimization method includes two types, a single-train trajectory optimization (STTO), which focuses on optimizing individual train movements within the relaxed arrival and departure time windows, and a multi-train trajectory optimization (MTTO), which computes multi-train trajectories simultaneously with a shared objective of minimizing multi-train energy consumption and an additional target of eliminating conflicts between trains. The STTO and MTTO are re-formulated as a multiple-phase optimal control problem, which has the advantage of accurately incorporating varying gradients, curves and speed limits and different train routes. The multiple-phase optimal control problem is then solved by a pseudospectral method. The proposed approach is applied in case studies to fine-tune two timetables, for a single-track railway corridor and a double-track corridor of the Dutch railway. The results suggest that the proposed approach is able to improve the energy efficiency of a timetable.

论文类型：期刊论文

论文编号：S0377221718305691

学科门类：工学

文献类型：J

卷号：272

期号：2

页面范围：621-635

ISSN号：0377-2217

是否译文：否

发表时间：2018-06-21

收录刊物：SCI、EI

发布期刊链接：https://www.sciencedirect.com/science/article/pii/S0377221718305691