Timetable Synchronization Optimization for Metro Networks with Consideration of Station Centrality

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Original languageEnglish
Pages (from-to)2697-2707
Journal / PublicationIEEE Transactions on Network Science and Engineering
Issue number4
Online published22 Apr 2022
Publication statusPublished - Jul 2022


In a metro network, the majority of passengers generally need to transfer from one line to another at least once in order to reach their destinations. A well-synchronized metro network timetable can shorten the commute time and improve the transfer experience, especially during non-peak hours and near the end of daily service. A mixed-integer optimization method is proposed to reduce the transfer waiting time and increase the number of connections. Specifically, arrival and departure times at transfer stations are synchronized with priority in accordance with the stations' node centrality. A case study on the Hong Kong metro network shows that the proposed method can generate well-synchronized timetables that support a higher overall transfer passenger volume and offer commuters generally shorter waiting times.

Research Area(s)

  • Complex networks, Data models, Metro network, node centrality, Optimization, Rail transportation, Resource management, Symbols, Synchronization, synchronization optimization, transfer station

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