Research on the Impact of Heavy Rainfall Flooding on Urban Traffic Network Based on Road Topology: A Case Study of Xi’an City, China

Author:

Liu Jiayu1ORCID,Yang Xiangyu2ORCID,Ren Shaobin1

Affiliation:

1. School of Architecture and Urban Planning, Huazhong University of Science and Technology, Wuhan 430074, China

2. School of Artificial Intelligence and Automation, Huazhong University of Science and Technology, Wuhan 430074, China

Abstract

In recent years, the frequent occurrence of extreme emergencies represented by heavy rainfall has posed a significant impact on urban transportation networks and caused great inconvenience to people’s production and life. This paper examines the impact of heavy rainfall on the urban transportation network in Xi’an’s main urban area, models the map of urban road network in the main urban area of Xi’an by applying complex network theory, quantifies and analyzes the topological and geographic structural characteristics of the affected sections (interrupted by heavy rainfall) due to heavy rainfall, as well as the impact of heavy rainfall on the functional indexes of the road network such as access efficiency and accessibility, and, finally, analyzes its formation causes and proposes targeted management countermeasures. The findings of this study serve as a valuable reference for enhancing urban traffic emergency management capabilities and fostering sustainable urban development.

Funder

The Humanities and Social Sciences Program of the Ministry of Education in China

Publisher

MDPI AG

Subject

Nature and Landscape Conservation,Ecology,Global and Planetary Change

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