Complex network characteristics of the planned subway station network in Hangzhou (2005-2022)

Wu Fang,Wang Kaiqiang,Shen Peng,Wang Xin,Hu Xiaojun,Zhu Yue,Zhu Wei,R Weerasinghe,C.-H Weng,J Wu

doi:10.1051/e3sconf/202019405052

Abstract

The complex network characteristic of the planned subway station system is of great significance to the centrality layout of the existing urban areas. The three phases of the Hangzhou subway plan from 2005-2022 are selected as a case, and the complex network analysis method is used to study the centrality characteristic of the planned subway station system. The study found that with construction, the network density, clustering coefficient, average shortcut distance, all centrality indicators of the network gradually decreased; but in phase Ⅲadjustment, the average shortcut distance, three centrality potential indicators have all rebounded substantially. The newly-added airport rail express line has greatly increased the overall cohesion of the original subway network. The subway station networks of five planning stages all have smaller clustering coefficients and larger average shortcut distances, but none of them have a small-world characteristic, and the scale-free characteristic is still not obvious.

Highlights

As an effective urban development model for the coordinated development of transportation and land use, Transit-Oriented Development (TOD) has attracted the attention of many countries in the world and has been carried out active practices
This study selects the three phases of the Hangzhou subway plan from 2005-2022 as a case study, using complex network analysis methods to study the centrality characteristic of planned subway stations based on topological network structure, which will help the making decisions based on the TOD development advantages, potentials and differences and provide a scientific basis for the formation of an urban organic renewal strategy at the stage of stock optimization
In the phase III adjustment, the average shortcut distance, the betweenness centrality potential, closeness centrality potential, degree centrality potential have all rebounded significantly. This is closely related to the addition of the airport rail express line in the phase III adjustment

Summary

Introduction

As an effective urban development model for the coordinated development of transportation and land use, Transit-Oriented Development (TOD) has attracted the attention of many countries in the world and has been carried out active practices. The above research reveals the character of the complex network of the transportation system and its interaction with urban land use from different levels and provides an important reference for people to deeply understand the coupling mechanism of public transportation and the built environment. This study selects the three phases of the Hangzhou subway plan from 2005-2022 as a case study, using complex network analysis methods to study the centrality characteristic of planned subway stations based on topological network structure, which will help the making decisions based on the TOD development advantages, potentials and differences and provide a scientific basis for the formation of an urban organic renewal strategy at the stage of stock optimization

Research objects and scope

Network model construction and polycentricity evaluation method

Complex network characteristics

Conclusion