Over the last decades, new mobility offers have emerged to enlarge the coverage and the accessibility of public transportation systems. In many areas, public transit now incorporates on-demand transport lines, that can be activated at user need. In this paper, we propose to integrate lines without predefined schedules but with predefined stop sequences into a state-of-the-art trip planning algorithm for public transit, the Trip-Based Public Transit Routing algorithm [Witt, 2015]. We extend this algorithm to non-scheduled lines and explain how to model other modes of transportation, such as bike sharing, with this approach. The resulting algorithm is exact and optimizes two criteria: the earliest arrival time and the minimal number of transfers. Experiments on two large datasets show the interest of the proposed method over a baseline modelling.
@InProceedings{drakulic_et_al:LIPIcs.SEA.2022.6, author = {Drakulic, Darko and Loiodice, Christelle and Lehoux, Vassilissa}, title = {{Routing in Multimodal Transportation Networks with Non-Scheduled Lines}}, booktitle = {20th International Symposium on Experimental Algorithms (SEA 2022)}, pages = {6:1--6:15}, series = {Leibniz International Proceedings in Informatics (LIPIcs)}, ISBN = {978-3-95977-251-8}, ISSN = {1868-8969}, year = {2022}, volume = {233}, editor = {Schulz, Christian and U\c{c}ar, Bora}, publisher = {Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik}, address = {Dagstuhl, Germany}, URL = {https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.SEA.2022.6}, URN = {urn:nbn:de:0030-drops-165406}, doi = {10.4230/LIPIcs.SEA.2022.6}, annote = {Keywords: Multimodal routing, on-demand public transportation, bicriteria shortest paths} }
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