I'm trying to change the symbology of my routes that are the result of a closest facility tool.

Obviously these are line features, from a busstop to a particular central point.

Some routes from different busstops however have the same route.

I'm trying to find out what the increase of traffic is per piece of line, so obviously lines closest to the central point will have more traffic than roads further to the countryside. Since some routes overlap, I need to sum up the amount of travellers.

In other worse, if 4 people use busstop A, the next busstop on the route B have 5 people. The line between B and C will have 9 people.

How can I add up these numbers of travellers (I have them as an attribute field) in a line feature?

This gentleman was trying to find out the same idea I believe, but I don't have programming skills.: http://gis.stackexchange.com/questions/139681/overlaying-lines-and-aggregating-their-values-for-overlapping-segments?answertab=oldest#tab-top

I suspect there's an easier way to do this because this feels unnecessarily complicated but here goes:

1.) Start with overlapping lines:

2.) Delineate a polygon that covers your entire area:

3.) Run intersect between the polygon and lines, choosing LINE as the output type. This will result in multiple copies of overlapping line segments, each with the original count, plus a single copy each of non-overlapping segments.

4.) Run Add Geometry Attributes, choosing to add CENTROID coordinates to the intersected line segments.

5.) Dissolve the intersected line segments by the centroid coordinates, and SUM the number of travellers: