Proof-of-payment (POP) is an honour-based fare collection system which allows all-door boarding, and is used on the 501 Queen, 504 King and 510 Spadina streetcar lines.
Proof-of-payment (POP) is an honour-based fare collection system-door boarding. This fare collection system allows all. Proof-of-payment (POP) is used on the 501 Queen. Proof-of-payment (POP) is used on 504 King. Proof-of-payment (POP) is used on 510 Spadina streetcar lines.