26 July 2007 A computing method for spatial accessibility based on grid partition
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An accessibility computing method and process based on grid partition was put forward in the paper. As two important factors impacting on traffic, density of road network and relative spatial resistance for difference land use was integrated into computing traffic cost in each grid. A* algorithms was inducted to searching optimum traffic cost of grids path, a detailed searching process and definition of heuristic evaluation function was described in the paper. Therefore, the method can be implemented more simply and its data source is obtained more easily. Moreover, by changing heuristic searching information, more reasonable computing result can be obtained. For confirming our research, a software package was developed with C# language under ArcEngine9 environment. Applying the computing method, a case study on accessibility of business districts in Guangzhou city was carried out.
© (2007) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Linbing Ma, Linbing Ma, Xinchang Zhang, Xinchang Zhang, } "A computing method for spatial accessibility based on grid partition", Proc. SPIE 6753, Geoinformatics 2007: Geospatial Information Science, 675317 (26 July 2007); doi: 10.1117/12.761782; https://doi.org/10.1117/12.761782

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