Path Allocation with a VRMA-VF table

Discussion created by gregoryrburns on Oct 5, 2010
Latest reply on Apr 9, 2015 by ntrip
I've been trying to run the Path Allocation tool with a custom VRMA-VF table to model energy expenditure for travel on foot.  The tool will run if I use the built-in vertical factor functions, but hangs indefinitely (most common in ArcGIS 10) or fails with a meaningless error message (most common in ArcGIS 9.3.1) when I use a custom table.  I assume I have made an error in formatting the table.  The online help ( gives an example for building the table, but it is just a copy of the sample table for the horizontal factor.  Does vertical factor also need to run from 0 to 180 degrees?  If so, to what slope do 0, 90, and 180 correspond?