New Train Stations in Osaka Lower Healthcare Costs: A Study Findings
TL/DR –
A study by Sayana Wakisaka and Junior Associate Professor Haruka Kato’s team at Osaka Metropolitan University, in collaboration with the Future Co-Creation Laboratory at Japan System Techniques Co., Ltd., examined the impact of opening new train stations on regional health expenditures for middle-aged adults in Japan. They found that overall, the opening of new stations did not significantly reduce healthcare costs. However, individual stations, particularly those with strong inter-network connectivity like Shigino Station, showed a reduction in healthcare costs, likely due to increased use of public transportation and walking.
Impact of New Railway Stations on Healthcare Costs
New research from the Graduate School of Human Life and Ecology at Osaka Metropolitan University examines the effect of new railway stations on healthcare costs. This study is especially relevant as Japan transitions to a super-aged society, putting intense pressure on healthcare and social security spending.
The research focused on the “Compact Plus Network” planning policy which promotes living near public transit as a way to reduce reliance on cars. Junior Associate Professor Haruka Kato’s team collaborated with the Future Co-Creation Laboratory at Japan System Techniques Co., Ltd., to study if opening a new station could reduce medical costs.
The team conducted a natural experiment with the staggered openings of the Osaka-Higashi Line. They analyzed health insurance claims from the REZULT medical dataset, applying a Causal-Impact algorithm to estimate the effect of the 2019 station openings on regional health expenditure (RHE) among middle-aged adults. The analysis covered four years before and after the opening of stations such as JR-Awaji, Shirokitakoendori, JR-Noe, and Shigino within an 800-meter radius.
The findings revealed no significant reduction in RHE at the railway-line level over four years. However, Shigino Station showed an estimated cumulative reduction of approximately JPY 62,500.62 (approx. USD 562) per person over the same period. Shigino Station’s inter-network connectivity as a transfer hub to the JR Gakkentoshi Line and the Osaka Metro Imazatosuji Line likely encouraged more use of transportation and walking, contributing to better health outcomes.
Dr. Kato commented, “Our findings suggest that opening new stations does not automatically generate healthcare savings. However, individual stations’ connectivity and local context can shape whether a station opening translates into lower healthcare expenditure, offering practical insights for health-informed rail planning”.
The research findings were published in the Journal of Transport & Health.
About OMU: Osaka Metropolitan University, established as one of Japan’s largest public universities, is dedicated to shaping society’s future through world-class research and the “Convergence of Knowledge”. For more research news, visit www.omu.ac.jp/en/ and follow us on Twitter, Facebook, Instagram, and LinkedIn.
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