Analyse common vehicle path
Use the button 
.
After loading the data, the common vehicle path is shown on the map.
Note: The common
vehicle path is the list of trails on which all the vehicles have driven during one
of the trains that the vehicles have served.
Note: The path of the vehicle is
the combined path of all the trains of that vehicle.
Note: Adding a vehicle
with no trains, will result in no common train path.