We, wife and I, are in Porto for a few days. Mostly walking but using the metro once or twice a day. Wife will also use the metro for her return to the airport (I won't because I'll return to Brussels by train). The metro uses a zonal fare system, you pre-load the tickets you need on a smartcard and validate them as you go. We normally need two-zones tickets but she will need a four-zones one to go to the airport.
And hence the question : when you have different ticket types loaded on your smartcard, how do you tell, at validation time, which ticket type should be validated ?
And hence the question : when you have different ticket types loaded on your smartcard, how do you tell, at validation time, which ticket type should be validated ?
