Navigable electronic map is the basis of In-Vehicle Navigation Systems. The spider-web model uses traffic matrix to describe the traffic attribute of intersections,therefore is more applicable for vehicle navigation. In order to use electronic map data in the in-vehicle navigation system,this paper proposed a method for calculating the traffic matrix. Firstly,a newly developed road-bundle model is built based on the common used GIS model to describe the features of different types of intersections,and also ...
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