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Exact Routing in Large Road Networks Using Contraction Hierarchies

Open access
Geisberger, Robert, Sanders, Peter, Schultes, Dominik, Vetter, Christian·2012·Transportation Science

Abstract

Contraction hierarchies are a simple approach for fast routing in road networks. Our algorithm calculates exact shortest paths and handles road networks of whole continents. During a preprocessing step, we exploit the inherent hierarchical structure of road networks by adding shortcut edges. A subsequent modified bidirectional Dijkstra algorithm can then find a shortest path in a fraction of a millisecond, visiting only a few hundred nodes. This small search space makes it suitable to implement it on a mobile device. We present a mobile implementation that also handles changes in the road network, like traffic jams, and that allows instantaneous routing without noticeable delay for the user. Also, an algorithm to calculate large distance tables is currently the fastest if based on contraction hierarchies.

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Metadata

Authors
Geisberger, R., Sanders, P., Schultes, D., & Vetter, C.
Venue
Transportation Science
Published
2012-08
Volume
46
Issue
3
Pages
388-404
ISSN
  • 0041-1655 (ISSN-L)
  • 1526-5447
OpenAlex
W2143083884
Cited by
323
References
0
FWCI
26.47
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Exact Routing in Large Road Networks Using Contraction Hierarchies. https://app.cochat.ai/papers/10.1287/trsc.1110.0401
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Geisberger, R., Sanders, P., Schultes, D., & Vetter, C. (2012). Exact Routing in Large Road Networks Using Contraction Hierarchies. Transportation Science. https://doi.org/10.1287/trsc.1110.0401

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.