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Efficient Route Compression for Hybrid Route Planning

  • Gernot Veit Batz
  • Robert Geisberger
  • Dennis Luxen
  • Peter Sanders
  • Roman Zubkov
Part of the Lecture Notes in Computer Science book series (LNCS, volume 7659)

Abstract

We describe an algorithmic framework for lossless compression of route descriptions. This is useful for hybrid route planning where routes are computed by a server and then transmitted to a client device in a car using some mobile radio communication where bandwidth may be low. Compressed routes are represented by only a few via nodes which are the connection points when the route is decomposed into unique optimal segments. To reconstruct the route efficiently a client device needs basic but fast route planning capability. Contraction hierarchies make this approach fast enough for practice: Compressing takes only a few milliseconds. And previous experiments suggest that a client can decompress each route segment virtually instantaneously. So, as the segments can be decompressed successively while driving, it is not likely that the driver experiences any delay except for the time needed by the mobile communication.

Keywords

Short Path Road Network Optimal Route Minimal Representation Route Planning 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • Gernot Veit Batz
    • 1
  • Robert Geisberger
    • 1
  • Dennis Luxen
    • 1
  • Peter Sanders
    • 1
  • Roman Zubkov
    • 1
  1. 1.Karlsruhe Institute of Technology (KIT)KarlsruheGermany

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