issue with result of service area

ParisaBozorgi2

I am using network analyst extension to create service areas of 10, 20, 40 minutes for my facilities. all facilities are located on the network. I get the service area of 10, 20, 40 minutes for all facilities except one. I don't know why one location has only a service area of 0.4 min. 

any help would be appreciated!

JaySandhu

If you are getting a small service area for one location than most likely it is located on an edge that is either restricted to travel on or disconnected from the network for some other reason.

What network dataset are you using? You may want to examine the connectivity of the edge with the network identify tool on the NA toolbar. 

Or, if you are using ArcMap, you can bring up the service area layer properties and on the Network Location tab, at the bottom left, check on the "Exclude restricted portions of the network" and then in the NA window, right-click on the Facilities and choose "Recalculate Location Fields". And then solve again. If the location was on a restricted edge, it will get moved to a nearby un-restricted edge and you may get a better service area.

Jay Sandhu