The use of motorways in Portugal is charged for all vehicles. For heavy goods vehicles with a height (above the first axle) more than 1,1 m, a toll is collected through a DSRC-based toll system.
The Portuguese toll includes motorways and bridges operated by various concessionaires. The Portugal toll service includes the Via Verde toll system, and the toll zone includes DSRC toll operators listed here: http://www.apcap.pt/en/members/
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