경기도 주거지 개발사업지구의 다차원 건조환경과 통행목적별 지속가능 교통수단 분담률의 관계

초록

This study examines the associations between four-dimensional built-environment characteristics—Node, Place, Design, and Accessibility—and purpose- and mode-specific sustainable mode-share estimates across 127 residential development districts in Gyeonggi Province, South Korea. The sample was limited to districts completed by the end of 2020 with at least 300 estimated outbound trips for each trip purpose. The dependent variables were commuting and non-commuting transit and walking/cycling shares estimated by reallocating the 2023 Korea Transport Database (KTDB) administrative-dong origin-destination data to district boundaries using area weighting. In the OLS models, transit shares for both purposes were positively associated with Accessibility. Node showed only marginal associations at the 10% level in the OLS models but was significant for commuting transit at the 5% level and marginally significant for non-commuting transit at the 10% level in the spatial error models. Walking/cycling shares were associated with Place, Accessibility, and development age, although the Place association weakened in the spatial error models. Cross-equation tests identified a significant difference between trip purposes only for Accessibility, with a larger coefficient for commuting in the transit models and for non-commuting in the walking/cycling models. Planned land-use mix and point-of-interest (POI) indicators were not significant. The positive Accessibility associations remained consistently robust for commuting transit and non-commuting walking/cycling and broadly robust for non-commuting transit across the cluster-robust, subsample, spatial-error, and leave-one-out specifications. Because the dependent variables are reallocated estimates derived from administrative-dong OD data and the reference years of some datasets are not fully aligned, the findings should be interpreted as exploratory associations rather than causal effects.

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