How many people can achieve a cell in certain time

Discussion created by mokukk on Jan 16, 2012
Latest reply on Jan 17, 2012 by csny490
Hi, I???m trying to figure out how to create population pressure surfaces with ArcGis 10. The idea is to create a map showing how many people can achieve a cell in certain amount of time, let???s say in 45 minutes. I have a population distribution raster and combined land cover/roads raster from the study area with the same cell size. The land cover/road raster has been reclassified to estimated average walking speeds of different land cover types to create certain type of cost surface (main road = 5km/h, dense forest = 1 km/h, mangrove = 0 km/h, etc.). How this could be done? None of the normal distance functions of spatial analyst seems to be able to solve this problem.

Thank you in advance!