Toll rates are determined by multiplying a unit tariff/kilometre by the number of travelled kilometres. To this amount adds VAT at the legal rate in force. Rates are then rounded up or down to the closest € 0.05 multiple. The way rates are determined and established is provided on Base XV of Brisa Concession Contract - DL no. 247 - C/2008, of 30 December.
Unit tariffs depend on the type of vehicle, which are divided into four classes as provided on Base XIV of Brisa Concession Contract - DL no. 294/97, of 24 October. Pursuant to this DL,vehicles are classified according to two criteria:
Vehicle height measured vertically as from first axis;
Total number of axes of vehicle.
Vehicle classification is represented in the following charts:
![](/portals/0/Imagens/Clientes_portagens/taxas_classe_1.jpg)
Vehicles with height measured vertically as from first axis below 1,10m, with or without trailer
*Motorcycles are considered class 1 in case of manual toll collection or class 5 for in case of electronic collection - Via Verde.
![](/portals/0/Imagens/Clientes_portagens/taxas_classe_2.jpg)
Vehicles with two axes and height measured vertically equal or, above 1,10 m.
![](/portals/0/Imagens/Clientes_portagens/taxas_classe_3.jpg)
Vehicles with three axes and height measured vertically equal or, above 1,10 m.
![](/portals/0/Imagens/Clientes_portagens/taxas_classe_4.jpg)
Vehicles with more than three axes and height measured vertically equal or, above 1,10 m.
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