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An Estimation Model of Urban Land Accessibility.
Wei Wang1, Jian Chen1, Zhiyuan Wang1
1School of Transportation, Southeast University, Nanjing 211189, China.
International Journal of Environmental Research and Public Health
|February 12, 2021
Summary
This study introduces a new comprehensive accessibility index for urban planning. This method quantifies location accessibility using GIS and road data, improving facility location selection.
Area of Science:
- Urban Planning
- Geographic Information Systems (GIS)
- Transportation Geography
Background:
- Current urbanization lacks quantitative traffic indicators for facility location.
- Existing accessibility measures are either too general or not scalable for urban planning.
Purpose of the Study:
- To propose a comprehensive accessibility index for urban facility location selection.
- To develop a measurement method for this index using GIS and road network data.
Main Methods:
- Urban land rasterization into grids using GIS.
- Calculation of external and internal accessibility for each grid.
- Integration of internal and external accessibility to form a comprehensive index.
Main Results:
- The comprehensive accessibility index was measured for Zhicheng, China.
- Spatial patterns of comprehensive accessibility closely matched urban land development trends.
- The method demonstrated feasibility and accuracy in a real-world urban area.
Conclusions:
- The proposed comprehensive accessibility index provides a practical, quantitative tool for urban facility location.
- Grid-based accessibility is more portable and specific than point or regional measures.
- This method enhances guidance for selecting optimal urban facility locations.
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