I've been using the Service Area tool for some fun transit analysis.
I have a shapefile of streets and a shapefile of bus stops and I'm calculating the 800 metre walk shed from each of the stops. I've entered 800 metres as my default break and have no custom breaks for any specific "Facilities". I also have my Multiple Facilities Options set to "Overlapping".
Why are some of my service areas less than 800 metres? Most of them are 800 but arbitrarily one is 169m and one is 460m. There are no barriers of any kind and there's nothing fancy in the streets shapefile - no attributes like oneway worth considering.
Thanks for your help!!