Contextual Routing and Navigation Method in Road Networks

In this paper, a novel method, namely contextual routing and navigation, is proposed. This method is based on the author's proposed hierarchical, lane-oriented 3D road network. The key to implement contextual routing and navigation is to adopt cognition-based hierarchical routing strategy and the view-based multi-scale navigation strategy. The two strategies enable users routing on roadway centreline, carriageway or lane and provides 2D, 2.5D and 3D communicating based on user defined context. A prototype is also developed in the VGEGIS system and the experimental results have confirmed the effectiveness and efficiency of the method. The paper will provide a contribution to flexible location-based services by innovatively considering the hierarchical knowledge of the road network system and contextual visualization needs.