Then what about when tap in was not recorded? Tap out refunds 0, and nothing happens?
If you never tap in, depends on 2 scenerio.
1-Whether the bas driver activate scanning for entry at the exit point
2-or not.
The front of the bas typically will activate both the entry and exit scanning function. The back of the bas typically will activate exit scanning function only.
Assuming people only enter from front of bas and exit from behind.
Driver did not on enable entry scanning function at the back.
Say you did not tap in, if you exit via the back you will hear a loud sound and an error message.
In that case leave exit the bus. GXGX you got a free bas ride.
Assuming people only enter from front of bas and exit from behind.
Driver enable entry scanning function at the back.
Say you did not tap in, if you exit via the back you will be charged from that exit point, to the bas terminal