I have a roadway network shapefile which only contains the center line of the roadway. I'm trying to create directional roadways from the center line. So I use "Copy Parallel" to create roadways at both sides of the center line and then add attribute to specify the direction. This is not a good method since the length of the lines do not change, so the ends of each segment can't meet (See 1st pic). Is there anyway to do it like tracing?
Another problem is that after adding the parallel lines, I need to specify the direction of the parallel lines (whether it is northbound or southbound roadways). Since one roadway is consist of multiple segments, it takes a lot of time to manually select roadway of one direction. I can't use "Select By Attribute" since it is difficult to differentiate the parallel lines after copying and pasting.So I'm wondering if there is a way to select the whole road (multiple segments) by picking the start and end point of the roadway (So all segments directly connect to each other will be selected)?
Any suggestions would be very much appreciated.