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Sources and Software used by Kurviger

The road data is provided by the OpenStreetMap and it's contributors. OpenStreetMap is open data, licensed under the Open Data Commons Open Database License (ODbL) by the OpenStreetMap Foundation (OSMF).

The elevation data is based on data provided by different sources:

  • Jarvis, A., H.I. Reuter, A. Nelson, E. Guevara, 2008, Hole-filled SRTM for the globe Version 4, available from the CGIAR-CSI SRTM 90m Database (http://srtm.csi.cgiar.org).
  • Data derived from NASA, NGA and the USGS
  • Data available from the U.S. Geological Survey

Kurviger is based on the open source routing engine GraphHopper which is distributed under Apache 2 license. Used software by GraphHopper can be found here and might be also used by Kurviger.