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February 5, 2026Transportation Research Record Journal of the Transportation Research Board

Characterizing a Long-Time Evolution of Metro Network Topology: Evidence from Metro Networks in 34 Chinese Cities

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Authors

HCHao ChaiTSTieshan SunYWYizeng Wang

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Overview

Analysis reveals metro network topology evolution phases in 34 cities, suggesting planning implications for urban development.

Key Points

  • This research aims to analyze the topology of metro networks across 34 Chinese cities to identify successful development practices.
  • Collected metro network data from 34 Chinese cities.
  • Utilized a three-dimensional model for topological analysis.
  • Identified phases in the evolution of metro networks.
  • Three evolution phases were identified: central densification, outward expansion, and preferential development.
  • Increased complexity of networks reaches saturation.
  • Implementation of ring lines improved network performance during early stages.

Cite This Study

Chai et al. (2026) studied this question.

synapsesocial.com/papers/698433a5f1d9ada3c1fb0f38https://doi.org/10.1177/03611981251413235
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