Wednesday, February 4, 2015
Calculate Spatial Importance of Road Network in ArcGIS
A recent study found that Random Walk algorithm can be utilized to rank spatial importance of road networks. The basic idea is that by simulating a person's random walking in a road networks, the road segments or interactions that have been walked through many times are considered spatially important. Such spatial importance of road networks is evidenced in their close correlation to some social-economic characteristics of surrounding urban areas structured by road networks, e.g., population density, job density, or even house prices. More details can be found at this article: The Random Walk Value for Ranking Spatial Characteristics in Road Networks.
An ArcGIS Tool has been devised to implement this Random Walk simulation.