Abstract
We provide an implementation of an exact route planning algorithm on a mobile device that answers shortest-path queries in a road network of a whole continent instantaneously, i.e., with a delay of about 100 ms which is virtually not observable for a human user. Our main algorithmic contribution of is a highly compressed blocked representation of the underlying hierarchical graph and a new fast yet compact route reconstruction data structure. Our representation exploits the locality properties of the graph using a very simple algorithm that does not use any a priori information.
Partially supported by DFG grant SA 933/5-1.
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Sanders, P., Schultes, D., Vetter, C. (2008). Mobile Route Planning. In: Halperin, D., Mehlhorn, K. (eds) Algorithms - ESA 2008. ESA 2008. Lecture Notes in Computer Science, vol 5193. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-87744-8_61
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DOI: https://doi.org/10.1007/978-3-540-87744-8_61
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