GIS 5100: Suitability and Least-Cost Analysis - Scenario 2

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Suitability and Least-Cost Analysis: Scenario 2

Analysis C: Rating Locations in Raster

In this scenario we are looking at what sections of land are suitable for development based on varied factors such as landcover, soils, slope, distance to streams, and distance to roads. With the results of the analysis, we can see what areas are suitable for development based on all these factors. Before running the result, each category (landcover, soils, slope, distance to streams, and distance to roads) had an individual raster created for individual results. Once all five individual results/rasters were created, I combined all five individual rasters together as one result/raster with the Weighted Overlay Tool for our final results. 

There were two analyses run with the Weighted Overlay Tool. One analysis was run with equal weights (20% each) between the five categories, and the second analysis was run with alternative weights between the five categories - landcover 20%, soils 20%, slope 40%, distance to streams 10%, and distance to roads 10% - mostly focusing on slope. In both raster results you can see that the most suitable land for development is rated at a five and the least suitable is rated at a one.




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