What is tap-in/tap-out?

• A. A single ride ticket used for boarding.
• B. A system that requires paper tickets only.
• C. A method where riders tap in and tap out to calculate trip-based charges.
• D. A loyalty program.

Answer: (C)

Tap-in/tap-out is a fare collection method where you tap your card, phone, or other device when you start a trip and tap again when you finish, letting the system calculate the charge based on the actual trip length or zones traveled. This approach uses electronic readers and typically supports trip-based pricing rather than a flat fare. So the correct idea is that riders tap in and tap out to determine the fare. The other descriptions don’t fit: a single ride ticket is usually a flat-duty ride without needing a tap-out to set the price; a system that requires paper tickets only ignores the electronic tap-in/tap-out method; and a loyalty program is unrelated to how fares are calculated.