The Network Spillover Effects of Metro Expansion on Metro Usage: A Quasi-experimental Analysis in Shenzhen, China

Document Type

Journal Article

Publication Date

2026

Subject Area

place - asia, place - urban, mode - subway/metro, infrastructure - station, ridership - behaviour, land use - impacts, land use - transit oriented development

Keywords

spatially interrupted time-series research design, network spillover effect, casual inference, metro expansion, metro travel distance

Abstract

Using Shenzhen, China as a case study, we observed that metro (i.e., subway) expansion can generate network spillover effects on metro usage along the existing metro lines. We also found that metro-induced network spillover effect follows a distance decay pattern both along the metro line and areas adjacent to stations. Analyzing time-varying network spillover effect can produce more accurate assessments of the travel behavior implications stemming from metro expansion, thereby better informing the metro investment, land value capitalization strategies, and transit-oriented development.

Rights

Permission to publish the abstract has been given by SAGE, copyright remains with them.

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