I need to perform a cost-distance analysis and cost allocation analysis for a tsunami evacuation model. As only open and free available data is used, it would be also good to use open source software only.
Since Grass GIS and SAGA tools do not seem to cover a cost allocation analysis, I tried Whitebox GAT (GIS Analysis --> Cost-distance-analyses).
Until now I had no success. I created a small (4x4 pixel) raster to test the tool but when I click "Run" (for the cost-accumulation) I get no result (Whitebox GAT then covers 90% of the CPU usage and seems to calculate (800mb RAM-usage), but after 15minutes I cancelled the process. I have 4gb of RAM and 4x2,1 GHz cpu).
Does anybody used Whitebox's tool for cost-distance analyses and had success? Maybe I just don't get how the input data should be arranged, please see the attached picture - am I right? (Source cell -> all positive values)
Maybe someone knows an alternative to Whitebox.