An Integrated Network Modeling for Road Maps
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Critical-location identification on a road map is very helpful to assign traffic resources reasonably in traffic simulations. To simultaneously identify the critical levels of roads and junctions in a road map by the same measure of centrality, we define a novel road network modeling concept: integrated graph, in which both junctions and roads are abstracted as nodes. Based on this method, we analyze the importance of locations in a small road network and Beijing’s main-road network. The results show that this modeling method of road networks is feasible and efficient.
KeywordsNetwork modeling Road network Centrality indices Critical-location identification
The authors would like to thank National Nature and Science Foundation of China under Grant Nos. 91024030, 91224008, 61503402, and 71303252.
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