Bug: Network Analyst: ArcMap crashes when generating service area polygons
Generating service area polygons may not complete or may crash on a particular type of dataset.
This problem can occur on data whose X,Y extent is very small but the impedance attribute unit on which the service area is running is extremely large.
For example, the data could be in lat/long and the units of length could be in centimeter and service areas of millions of centimeters are being computed.
Use a larger unit of measurement such as kilometers or miles instead of centimeters or inches.