This can include season valid season tickets, returns, open returns, weekly passes, rovers and rangers, carnet/multiflex and off peak.
Gall hyn gynnwys tocynnau tymor dilys, tocynnau dwyffordd, tocynnau dwyffordd agored, tocynnau wythnosol, tocynnau crwydro, carnet/multiflex a thocynnau y tu allan i'r cyfnod brig.