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Article

An Open-Source Framework of Generating Network-Based Transit Catchment Areas by Walking

1
Chair of Cartography, Technical University of Munich, 80333 Munich, Germany
2
School of Geospatial Information, Information Engineering University, Zhengzhou 450052, China
*
Author to whom correspondence should be addressed.
ISPRS Int. J. Geo-Inf. 2020, 9(8), 467; https://0-doi-org.brum.beds.ac.uk/10.3390/ijgi9080467
Received: 3 July 2020 / Revised: 18 July 2020 / Accepted: 20 July 2020 / Published: 22 July 2020
The transit catchment area is an important concept for public transport planning. This study proposes a methodological framework to generate network-based transit catchment areas by walking. Three components of the framework, namely subgraph construction, extended shortest path tree construction and contour generation are presented step by step. Methods on how to generalize the framework to the cases of the directed road network and non-point facilities are developed. The implementation of the framework is provided as an open-source project. Using metro stations in Shanghai as a case study, we illustrate the feasibility of the proposed framework. Experiments show that the proposed method generates catchment areas of high geospatial accuracy and significantly increases computational efficiency. The open-source program can be applied to support research related to transit catchment areas and has the potential to be extended to include more routing-related factors. View Full-Text
Keywords: transit catchment areas; pedestrian access; extended shortest path tree; constrained triangulation; contour generation transit catchment areas; pedestrian access; extended shortest path tree; constrained triangulation; contour generation
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MDPI and ACS Style

Lin, D.; Zhu, R.; Yang, J.; Meng, L. An Open-Source Framework of Generating Network-Based Transit Catchment Areas by Walking. ISPRS Int. J. Geo-Inf. 2020, 9, 467. https://0-doi-org.brum.beds.ac.uk/10.3390/ijgi9080467

AMA Style

Lin D, Zhu R, Yang J, Meng L. An Open-Source Framework of Generating Network-Based Transit Catchment Areas by Walking. ISPRS International Journal of Geo-Information. 2020; 9(8):467. https://0-doi-org.brum.beds.ac.uk/10.3390/ijgi9080467

Chicago/Turabian Style

Lin, Diao; Zhu, Ruoxin; Yang, Jian; Meng, Liqiu. 2020. "An Open-Source Framework of Generating Network-Based Transit Catchment Areas by Walking" ISPRS Int. J. Geo-Inf. 9, no. 8: 467. https://0-doi-org.brum.beds.ac.uk/10.3390/ijgi9080467

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