Complex sentence: Due to the lack of organization of the pesero network, there is no comprehensive index of routes available to the general public, despite the fact that routes are assigned a number in order to distinguish them from each other in license plates.
Split into simpler sentences: Due to the lack of organization of the pesero network, there is no comprehensive index of routes available to the general public. Nevertheless, routes are assigned a route number in order to distinguish them from each other in license plates.