A Combined Simulation-Optimization Approach for Robust Timetabling on Main Railway Lines
نویسندگان
چکیده
Performance aspects such as travel time, punctuality, and robustness are conflicting goals of utmost importance for railway transports. To successfully plan traffic, it is therefore important to strike a balance between planned times expected delays. In operations research, lot attention has been given construct models methods generate robust timetables—that is, timetables with the potential withstand design errors, incorrect data, minor everyday disturbances. Despite this, current state practice in planning manually, possibly support microsimulation evaluation. This paper aims narrow gap state-of-the-art optimization-based research approaches by combining simulation optimization. The proposes combined simulation-optimization approach double-track lines, which generalizes previous work allow full flexibility order trains including new more generic model predict By utilizing delay data from simulation, can make socioeconomically optimal modifications timetable minimizing predicted disutility—the weighted sum scheduled time total delay. large experiment on heavily congested Swedish Western Main Line, demonstrated that compared real-life, manually constructed timetable, reductions delays well improvements punctuality could be obtained small cost marginally longer times. in-vehicle mean was reduced 5% average, representing improvement highly utilized line. Furthermore, separate scaling indicates also suitable larger problems. Funding: funded Trafikverket [Grants TRV 2016/5090 2020/72690].
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ژورنال
عنوان ژورنال: Transportation Science
سال: 2023
ISSN: ['0041-1655', '1526-5447']
DOI: https://doi.org/10.1287/trsc.2022.1158