Hmm.. clarify: The direction given at the time was only to check these lines against aerial imagery ensuring they represent sidewalks, and not getting onto roadways and ends at where sidewalks end (thus they would not be necessary connected); then import them. This was based on verbal directions and steps on the given instruction sheet.. Also, not all lines from the data set being looked at are necessary connected.. There were NO mentioning or indication these sidewalk lines are being used/treated or intended to be used as network routes in the instructions. On the instruction sheet, there were no requirement to connect these sidewalk lines as network routes. Just try to help and follow the directions given. Hope this provides some clarity.