You could do this by making a polygon covering your whole network area (in this case, the whole city of Ottawa) and then using the Erase tool to subtract the 15 min walking service area (SA) polygon. To do this, you would have to merge all of the individual 15min walking SA polygons into a single shapefile, as Erase can only use one polygon for the "Erase Features" input. Once you have your beyond-15min walking SA polygon, you can use this video's Spatial Join technique to calculate the total population of this under-served area. Hope this helps (and works!)
Thank you for the video. I did my first network analysis after watching your video.
what about the DRIVING?
can I use polygons as Facilities?
How do you enable Mode for service Area layer?
how can I reverse it to show areas outside of 15 min walkable distance
like showing food deserts
You could do this by making a polygon covering your whole network area (in this case, the whole city of Ottawa) and then using the Erase tool to subtract the 15 min walking service area (SA) polygon. To do this, you would have to merge all of the individual 15min walking SA polygons into a single shapefile, as Erase can only use one polygon for the "Erase Features" input. Once you have your beyond-15min walking SA polygon, you can use this video's Spatial Join technique to calculate the total population of this under-served area. Hope this helps (and works!)
From where you got the road network? I used road network from census and each time i found the network broken.
I had the same issue. This video might help you: ruclips.net/video/Qu5YcXmIpDs/видео.html
@@maurizporsche Thank you so much! I´ve been searching for a tutorial like that for days!