Spatio-temporal Evolution Characteristics of Beijing Subway Network and Its Evolution Mechanism
Received date: 2020-07-17
Online published: 2025-04-25
Studying the spatio-temporal evolution characteristics of the subway network is a necessary means to optimize the network structure and conducive to improving the disaster resilience of the system. Based on the complex network theory,this paper uses the Space-L network model to construct the spatial structure of the subway network,and evaluates the spatial and temporal evolution characteristics of the subway network by improving the connectivity assessment method of the subway network spatial structure and the network structure complexity assessment method. Taking the Beijing subway as an example,this study constructs the Beijing subway network structure from 1971 to 2020,analyzes the development status of the Beijing subway network structure,the scale-free characteristics and the evolution characteristics of the small-world characteristics,the results are found: 1) The network structure connectivity development is still at lower level,the network structure complexity is smaller. 2) During the expansion of the spatial structure of the Beijing subway network,when new lines select old stations for transfer,there are both priority connections and random connections. 3) So far,the evolution of the spatial structure of the Beijing subway network has been dominated by covered-type lines and supplemented by optimized-type lines. 4) The setting of newly-built stations on covered-type lines and optimized-type lines is limited by the corridor direction and perception range. Research methods and research results can provide a basis for network optimization and dynamic complexity research on networks.
WANG Zhiru , ZHANG Manyin . Spatio-temporal Evolution Characteristics of Beijing Subway Network and Its Evolution Mechanism[J]. Economic geography, 2021 , 41(4) : 48 -56 . DOI: 10.15957/j.cnki.jjdl.2021.04.007
表1 1988—2020年北京地铁网络线路度分布与K-S检验结果Tab.1 Degree distribution and K-S test of Beijing subway network from 1988 to 2020 |
| 年份 | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| a | λ | P值 | a | λ | P值 | a | λ | P值 | |||
| 1988 | 0.0344 | 3.335 | 0.10 | 0.9655 | 4.851 | 0.82 | 0.0225 | 4.808 | 0.93 | ||
| 1993 | 0.0333 | 3.370 | 0.10 | 0.9667 | 4.900 | 0.82 | 0.0247 | 4.857 | 0.91 | ||
| 2000 | 0.0523 | 2.896 | 0.12 | 0.9474 | 4.242 | 0.82 | 0.0006 | 4.276 | 0.92 | ||
| 2001 | 0.0510 | 2.924 | 0.12 | 0.9488 | 4.279 | 0.82 | 0.0002 | 4.338 | 0.91 | ||
| 2002 | 0.0633 | 2.695 | 0.14 | 0.9363 | 3.964 | 0.82 | 0.0033 | 4.024 | 0.95 | ||
| 2003 | 0.0745 | 2.519 | 0.15 | 0.9247 | 3.723 | 0.82 | 0.0053 | 3.772 | 0.92 | ||
| 2004 | 0.0919 | 2.289 | 0.18 | 0.9065 | 3.411 | 0.82 | 0.0235 | 3.459 | 0.92 | ||
| 2008 | 0.1043 | 2.148 | 0.20 | 0.8930 | 3.219 | 0.82 | 0.0350 | 3.296 | 0.93 | ||
| 2009 | 0.1279 | 1.906 | 0.24 | 0.8610 | 2.874 | 0.76 | 0.0520 | 2.976 | 0.91 | ||
| 2011 | 0.1243 | 1.934 | 0.23 | 0.8600 | 2.899 | 0.84 | 0.0520 | 3.002 | 0.94 | ||
| 2012 | 0.1140 | 2.036 | 0.21 | 0.8740 | 3.043 | 0.83 | 0.0440 | 3.135 | 0.91 | ||
| 2013 | 0.1141 | 2.037 | 0.21 | 0.8750 | 3.047 | 0.81 | 0.0440 | 3.138 | 0.91 | ||
| 2014 | 0.1474 | 1.735 | 0.28 | 0.8360 | 2.640 | 0.75 | 0.0670 | 2.760 | 0.89 | ||
| 2015 | 0.1590 | 1.642 | 0.30 | 0.8230 | 2.517 | 0.72 | 0.0770 | 2.647 | 0.92 | ||
| 2016 | 0.1561 | 1.667 | 0.30 | 0.8270 | 2.553 | 0.71 | 0.0730 | 2.679 | 0.93 | ||
| 2017 | 0.1652 | 1.597 | 0.32 | 0.8170 | 2.459 | 0.68 | 0.0810 | 2.592 | 0.94 | ||
| 2018 | 0.1630 | 1.614 | 0.31 | 0.8200 | 2.482 | 0.69 | 0.0790 | 2.613 | 0.92 | ||
| 2019 | 0.1578 | 1.655 | 0.30 | 0.8260 | 2.538 | 0.69 | 0.0740 | 2.664 | 0.92 | ||
| 2020 | 0.1552 | 1.676 | 0.30 | 0.8300 | 2.567 | 0.69 | 0.0720 | 2.691 | 0.92 | ||
注:K-S检验原假设H0:数据服从某一分布。P<0.05,拒绝原假设。 |
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