How to identify disconnected line features in a large polyline shapefile

RamB

I am using a street network of a large city with almost 6000 line features. When I am doing a network analysis, I get error of disconnected elements in the network. Is there any tool to identify such disconnected line segments that are not connected to any other line, or a couple of lines connected to themselves but not to the larger network. It is a large network and I am not able to visually find these. 

thank you.

JaySandhu

If you are looking for physical connectivity issues (not the ones caused by attributes like oneway's), you can use the Utility Network tools to find disconnected parts from some known location. Take a look at:

Find Disconnected Features in Geometric Network—Help | ArcGIS Desktop 

Note that this will require you to create/build a geometric network. Once you correct your issues, you can delete that and create a network dataset for use with Network Analyst. Alternatively you can use the Service Area solver (with the lines option) to find things that are "connected". Once you have this as a selection, invert the selection to find features that are not connected.

Jay Sandhu