期刊
SCIENTIFIC REPORTS
卷 10, 期 1, 页码 -出版社
NATURE PORTFOLIO
DOI: 10.1038/s41598-020-59576-1
关键词
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资金
- Conselleria d'Educacio, Cultura i Universitats of the Government of the Balearic Islands
- European Social Fund
- Spanish Ministry of Science, Innovation and Universities
- National Agency for Research Funding AEI
- FEDER (EU) [RTI2018-093732-B-C22]
- Maria de Maeztu program for Units of Excellence in RD [MDM2017-0711]
- French National Research Agency [ANR-17-CE03-0003]
- Agence Nationale de la Recherche (ANR) [ANR-17-CE03-0003] Funding Source: Agence Nationale de la Recherche (ANR)
Public transportation is a fundamental infrastructure for life in cities. Although its capacity is prepared for daily demand, congestion may rise when huge crowds gather in demonstrations, concerts or sport events. In this work, we study the robustness of public transportation networks by means of a stylized model mimicking individual mobility through the system. We find scaling relations in the delay suffered by both event participants and other citizens doing their usual traveling in the background. The delay is a function of the number of participants and the event location. The model is solved analytically in lattices proving the existence of scaling relations and the connection of their exponents to the local dimension. Thereafter, extensive and systematic simulations in eight worldwide cities reveal that a newly proposed measure of local dimension explains the exponents found in the network recovery. Our methodology allows to dynamically probe the local dimensionality of a transportation network and identify the most vulnerable spots in cities for the celebration of massive events.
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