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A comment on Show HN: Valhalla, an open source routing engine. Parent comment

Re:Show HN: Valhalla, an open source routing engine by karussell on Saturday June 06, 2015 @04:10PM (#9672087)
With Contraction Hierarchies you can get several hundred routes (or distances) per second. If you want to calculate distance matrices you can get a lot faster.
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