Least-Cost Path
Least-cost path analysis finds the route between two locations that minimizes accumulated travel cost across a landscape, rather than minimizing straight-line distance. By encoding terrain, slope, land cover, and other frictions into a cost surface and accumulating cost outward from a source, it identifies optimal corridors for roads, pipelines, trails, power lines, and wildlife movement — a core raster-GIS technique built on Dijkstra's shortest-path logic.
Source record
Citations copied verbatim from the method’s source record. No claim-level verification is inferred from them.
- Dijkstra, E. W. (1959). A note on two problems in connexion with graphs. Numerische Mathematik, 1(1), 269–271. · DOI 10.1007/BF01386390
- Douglas, D. H. (1994). Least-cost path in GIS using an accumulated cost surface and slopelines. Cartographica, 31(3), 37–51. · DOI 10.3138/D327-0323-2JUT-016M
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Related methods
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