Accessibility Dynamics With High-Speed Railway Network Expansion

Mengying Cui, Lijie Yu, Zhe Dai, Ang Ji, Keyue Liu and David Levinson
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David Levinson: TransportLab, School of Civil Engineering, University of Sydney

Working Papers from University of Minnesota: Nexus Research Group

Abstract: This study conducts a line-based accessibility analysis of high-speed railway (HSR) network expansion in the Guanzhong Plain Urban Agglomeration of China based on a multi-modal inter-city network. We propose an improved accessibility indicator that integrates opportunities and transport networks from neighboring regions, overcoming the artificial inequities inherent in traditional methods that restrict destination and route selections to rigid study area boundaries. The results reveal that the HSR network in the study area is still in the growth phase, with accessibility gains following an S-shaped trajectory, and has not yet reached maturity. Future investments are expected to sustain improvements in accessibility and spatial equity. More importantly, the operational sequence of HSR lines is less significant than their individual contributions to accessibility and equity. This implies few, if any, synergies between the HSR lines and emphasizes the importance of strategic line placement over construction order in fostering efficient and equitable regional connections, particularly in emerging HSR networks.

Keywords: transportation; accessibility; public transport; transport networks (search for similar items in EconPapers)
JEL-codes: R40 (search for similar items in EconPapers)
Date: 2026
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Published in Travel Behaviour and Society 43 101239

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https://doi.org/10.1016/j.tbs.2026.101239 Published version landing page, 2026 (text/html)

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Persistent link: https://EconPapers.repec.org/RePEc:nex:wpaper:paper-2026-01

DOI: 10.1016/j.tbs.2026.101239

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