Closest Facility- Warning

Question

I’m using a part of St. Louis streets data. Since, I’m trying to find
pedestrian connectivity, I'm trying to find routes from all incidents to all
facilities.

I added driveways in the same feature class for more accurate results.
Created a network dataset and added arbitrary facilities and incidents. When I
run the solve button I gives me routes connecting all facilities with all the
incidences except the two that are physically closer to the new driveway I
created in the original streets feature class. When I move the location of this
incidence close to original network it works. I’m not sure

what am I doing wrong in creation of new driveways. I used the snapping feature
to create the new driveways and don't see any connectivity problems. See
attached.

fig1.jpg

and-like-that-hes-gone-the-usual-suspects.gif

Melinda Morang · Accepted Answer

First question: Did you remember to "build" your network after adding in the driveways?

Assuming you built the network, then it sounds like your new driveway isn't actually connected to the network.  Even if the driveway is touching the street, it won't connect if there's not an endpoint or a vertex (depending on your Network's connectivity Policy) on the street feature at the location where the driveway touches it.  Please read up on network connectivity here: ArcGIS Help (10.2, 10.2.1, and 10.2.2)..

You can always look for network connectivity problems using the Network Identify tool (on the Network Analyst toolbar).  When you click on a network edge, it will show you all the other edges that are actually connected to it.