In Spain, heavy goods vehicles with a total height of more than 3 m or vehicles with a gross weight of more than 3.5 tonс must pay toll for the use of motorways (the so-called "Autopistas"). The toll is reported through a DSRC-based charging system.
Spanish toll-charged sections include motorways, speed roads, car parks, bridges and tunnels operated by various toll operators.
Variable vehicle parameters to be declared by the on-board unit:
Trailer axles - updated according to the trailer attached to the tractor. The number of axles of the combination shall also be established and checked by equipment installed along the road network