Evaluation of Walking Accessibility and Convenience of Metro Stations Based on Isochronous Fields

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The study selected a set of metro stations in the suburbs of Nanjing, China as the case study. Based on the walking navigation function provided by apps, the real walking isochronous fields of metro stations are obtained and deeply analyzed. The results presented a more accurate and refined understanding of the accessibility and convenience of these stations, and also provided a more targeted strategy for optimizing their public service performance.