Renz, Jochen; Wolfl, Stefan
Route navigation is one of the most widely used everyday application of spatial data. In this paper we investigate how a qualitative representation of route networks can be derived from map data and how this representation can be used to reason about route descriptions. We introduce a concept of route graph that provides an abstract layer on top of metric map data and thus allows for a compact representation of route information. We present selected queries and reasoning tasks that can be...[Show more]
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