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Efficiency in the evolution of metro networks

Metro systems extended rapidly in China, especially in the last decade, developing over a half-century. This work explores the dynamical evolution of the structural efficiency of metro systems interpreted as complex networks for 14 large cities in mainland China. Based on the empirical observations,...

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Autores principales: Pei, Aihui, Xiao, Feng, Yu, Senbin, Li, Lili
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9117694/
https://www.ncbi.nlm.nih.gov/pubmed/35585100
http://dx.doi.org/10.1038/s41598-022-12053-3
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author Pei, Aihui
Xiao, Feng
Yu, Senbin
Li, Lili
author_facet Pei, Aihui
Xiao, Feng
Yu, Senbin
Li, Lili
author_sort Pei, Aihui
collection PubMed
description Metro systems extended rapidly in China, especially in the last decade, developing over a half-century. This work explores the dynamical evolution of the structural efficiency of metro systems interpreted as complex networks for 14 large cities in mainland China. Based on the empirical observations, we find that the global efficiencies scale with the number of stations and counter-intuitively decreases as the metro networks expand, which shows a long-tail characteristic. The evolution of metro networks is, in essence, the improvement of the relative ratio of average nodal efficiency in the core compared to global efficiency. These relationships are in good agreement with the temporal structure of metro networks. Besides, we find that the metro stations with the higher efficiencies are those surrounding the urban center, and most of them dwell within the core and gradually expand the branches in space. Our findings suggest that the evolution properties of metro systems influenced by numerous geographical, historical, and social activities suggest that underlying, universal mechanisms are at play during their evolution in the spatial–temporal dimension.
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spelling pubmed-91176942022-05-20 Efficiency in the evolution of metro networks Pei, Aihui Xiao, Feng Yu, Senbin Li, Lili Sci Rep Article Metro systems extended rapidly in China, especially in the last decade, developing over a half-century. This work explores the dynamical evolution of the structural efficiency of metro systems interpreted as complex networks for 14 large cities in mainland China. Based on the empirical observations, we find that the global efficiencies scale with the number of stations and counter-intuitively decreases as the metro networks expand, which shows a long-tail characteristic. The evolution of metro networks is, in essence, the improvement of the relative ratio of average nodal efficiency in the core compared to global efficiency. These relationships are in good agreement with the temporal structure of metro networks. Besides, we find that the metro stations with the higher efficiencies are those surrounding the urban center, and most of them dwell within the core and gradually expand the branches in space. Our findings suggest that the evolution properties of metro systems influenced by numerous geographical, historical, and social activities suggest that underlying, universal mechanisms are at play during their evolution in the spatial–temporal dimension. Nature Publishing Group UK 2022-05-18 /pmc/articles/PMC9117694/ /pubmed/35585100 http://dx.doi.org/10.1038/s41598-022-12053-3 Text en © The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Pei, Aihui
Xiao, Feng
Yu, Senbin
Li, Lili
Efficiency in the evolution of metro networks
title Efficiency in the evolution of metro networks
title_full Efficiency in the evolution of metro networks
title_fullStr Efficiency in the evolution of metro networks
title_full_unstemmed Efficiency in the evolution of metro networks
title_short Efficiency in the evolution of metro networks
title_sort efficiency in the evolution of metro networks
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9117694/
https://www.ncbi.nlm.nih.gov/pubmed/35585100
http://dx.doi.org/10.1038/s41598-022-12053-3
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