When delays in trains occur, train schedules are rescheduled to reduce the impact. Despite many existing studies of automated train rescheduling, this study focuses on automated rescheduling considering a moving block and Automatic Train Operation (ATO). This study enables such automated rescheduling by formalizing this problem as a mixed integer programming (MIP) model. In previous work, the formulation was achieved for unidirectional single-track railway lines. In this paper, we aim to achieve the formulation for bidirectional double-track lines. Specifically, we propose a formulation of constraints about trains’ running terminal stations. To evaluate our automated rescheduling approach, we implemented an MIP model consisting of a combination of the new constraints with the previous MIP model. We demonstrated the feasibility of our approach by applying it to a bidirectional double-track line with eight delay scenarios. We also evaluate the delay reduction and computation overhead of our approach by comparing it with a baseline with these eight scenarios. The results show that the total delay of all trains from our approach reduced from 20% to 30% than one from the baseline. On the other hand, the computation time increased from less than 1 second to a minimum of about 20 seconds and a maximum of about 1600 seconds.
@InProceedings{kawazoe_et_al:OASIcs.ATMOS.2022.10, author = {Kawazoe, Kosuke and Yamauchi, Takuto and Tei, Kenji}, title = {{A Formulation of MIP Train Rescheduling at Terminals in Bidirectional Double-Track Lines with a Moving Block and ATO}}, booktitle = {22nd Symposium on Algorithmic Approaches for Transportation Modelling, Optimization, and Systems (ATMOS 2022)}, pages = {10:1--10:18}, series = {Open Access Series in Informatics (OASIcs)}, ISBN = {978-3-95977-259-4}, ISSN = {2190-6807}, year = {2022}, volume = {106}, editor = {D'Emidio, Mattia and Lindner, Niels}, publisher = {Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik}, address = {Dagstuhl, Germany}, URL = {https://drops.dagstuhl.de/entities/document/10.4230/OASIcs.ATMOS.2022.10}, URN = {urn:nbn:de:0030-drops-171148}, doi = {10.4230/OASIcs.ATMOS.2022.10}, annote = {Keywords: Train rescheduling, Mixed integer programming, ATO, Moving block} }
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