2

I am trying to figure out how best to calculate a 1.5 and 2.5-mile driving distance from a single point. Let's say we have a Fire Station connected to a road network and you want to find the 1.5 and 2.5-mile maximum driving distance along the road, is this possible?

3

It is definitely possible, but you'll need a license for Network Analyst or Spatial Analyst. Here's a good resource for just what you're trying to do with Network Analyst: http://desktop.arcgis.com/en/arcmap/latest/extensions/network-analyst/types-of-network-analyses.htm. If you have only Spatial Analyst, you could use Cost Distance. In that situation you'd need to create a raster layer with all roads having some raster value, and all areas impassable to vehicles as NoData. You could even assign different weights to different road classes (i.e. freeways = 1, city streets = 4, access roads = 5, gravel roads = 8, etc.) with Reclassify. Then select your source point and calculate Cost Distance (make sure to set Processing Extents to the original raster limits in Environments), which will produce a new raster. Finally, Contour will give you the distance contours you're looking for.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.