Via Verde
[image:Señal via verde.jpg|thumb|right|Freeway lane sign in the Portuguese A6 freeway/motorway (Marateca-Caia). The leftmost lane is for exclusive use by vehicles equipped with Via Verde tags.]
[image:Via Verde Almada 2007 12 08.jpg|thumb|right|Via Verde lanes in the 25 April Bridge toll plaza, Almada.]
Via Verde is an electronic toll collection system used in Portugal since April 1991. It is available at all toll roads and bridges in the country since 1995. Toll roads and bridges are operated by multiple operators, the main being Brisa - Auto-estradas de Portugal.
Upon passing in a non-stop lane at a toll, a DSRC tag attached to the vehicle's windshield transmits its identifier and the toll amount is debited directly from the client's bank account.
If an exception is detected or the vehicle's class the vehicle is photographed and, if there is indication of fraud, a legal procedure is initiated.
This system provides for a good flow of traffic: usually the non-stop lanes on interchanges have a 40 or 60 km/h speed limit, tolls on the highway have a 120 km/h speed limit, and the system has been proven to work at speeds above 200 km/h.
The Via Verde system was the first to be universally applied to all the tolls in a country. Via Verde has gained widespread use in Portugal mainly because it can operate with any bank in the country, as there is a fully integrated cross-bank network.
Vehicle classes
Via Verde/toll works with classes for the various vehicles.- Class 1: vehicles with a height that are below 1.10m, with or without trailer
- * Motorcycles are considered class 1 in case of manual toll collection or class 5 when using Via Verde.
- Class 2: vehicles with two axles and a height equal or above 1.10 m.
- Class 3: vehicles with three axles and a height equal or above 1.10 m.
- Class 4: vehicles with more than three axles and a height equal or above 1.10 m.
Measured over the front axle.