Need Help with analysis

Discussion created by gsoviak on May 18, 2012
Latest reply on May 18, 2012 by erice-esristaff
Ok, I am sure this has been asked but i cant seem to find the answer.  I need to create a "slope analysis" where i determine the slope percentage and classify by usability by a vehicle (1-5% flat to mild, unrestricted, 6-12% mildly restricted, etc) .  I am using NED 1/3 data from USGS.  I have run the "slope" tool a few times and used the "percent Rise" option and i get weird numbers like 1,219.  I thought this option would give me the percentages so I assumed 100% would be the greatest number.  I also used the degrees and i but i see that the slope is counted in degrees so percentage is out.  And maybe degrees makes more sense for this problem but I am not sure.  I am new with this type of analyis and have scoured the help functions and cannot seem to get an answer that helps.  Just so you (but you can probably tell) i am an occasional user and a novice.  Any help would be greatly appreciated.  Thanks.