Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Via Verde (literally "Green Lane") is an electronic toll collection system used in Portugal since 1991, and extended to every toll in every freeway/motorway and bridge in the country since 1995. Upon passing in a non-stop lane at a toll, an RFID tag attached to the vehicle's windshield transmits its identifier and the toll amount is debited directly from the client's bank account. If the tag is invalid (or non-existent) or the vehicle's class (as detected by the lane sensors) does not correspond to the class encoded in the tag, it is photographed and a legal procedure is initiated.

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