Network analysis – raster versus vector – A comparison study

Network analysis in GIS is often related to finding solutions to transportation problems. In a GIS the real world is represented by either one of two spatial models, vector-based, or raster-based. Real world networks, such as a road system, must be modelled appropriately to fit into the different spatial models. Even though the models differ, the solution to different transportation problems in either raster or vector GIS uses the same path finding algorithms. Whether raster or vector GIS is to be preferred is more a question of choice than of accuracy.

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