I have a very long shapefile with many public transport routes (I'm working with QGIS3 on Linux). Many of them are branches or parts of the same route but I don't know which is which, all their common feature is the name of the route, this is an screenshot of attribute table (it's in Spanish):
My problem is, there are many of them; the most obvious solution is to filter by route and then look each one of them on map to be sure they are not the same, and then use dissolve to merge them into one. As you can see, this is a very time consumig job, is there an easier and faster way?
The desired output is only one entry per route, and highlighted (on map) those who are the same, so that i can decide what to do with it