Do the day tickets 3 and 4 need to be used consecutively ?
On a bus and tramway , a ticket " t + " can usually be used for any single trip , without a transfer , regardless of the length of the trip and for any transfers with a maximum delay of 90 minutes between the first and the last validation , providing the same bus and / or tram line is not taken twice in a row ; however , a ticket used for a Metro or RER journey can not be used for a transfer onto the bus or tram network and vice-versa .