Time Dependent Contraction Hierarchies -- Basic Algorithmic Ideas

Published 24 Apr 2008 in cs.DS | (0804.3947v1)

Abstract: Contraction hierarchies are a simple hierarchical routing technique that has proved extremely efficient for static road networks. We explain how to generalize them to networks with time-dependent edge weights. This is the first hierarchical speedup technique for time-dependent routing that allows bidirectional query algorithms.

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