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Lisboa VIVA is a contacless smartcard used for electronic ticketing as part of the transportation system of Lisbon Metropolitan Area. It is in use on the Lisbon Metro and mandatory on Carris since 2004. The system was provided by Thales.
Use
The card is held near the black circle on the reader, at up to 5 cm. A beep will be heard, and a light will show. If the season ticket is valid, there is a short sound and a green light; if not, there is a longer sound and the light shows red.
References
LisboaViva Wikipedia(Text) CC BY-SA