How do you check that someone has a ticket when the buses & trains are rammed? You are then back to last season's scenario where some fans robbed the club by not buying travel vouchers?
If I want to buy car parking space for the season and pay for it, then there is no need for me to pay for it again on my ST. If I say I want to use the PR buses, then they charge me for that and again reduce the ST travel. It's not hard if you buy the form of travel from the club when you buy your ST.