20 cars, 88 passengers, 5 bays. 80 seconds on the clock.
88 waiting
You have 80 seconds, starting at your first tap. A bump costs 3 seconds.
Call the cars to the stop in this order: 4, 16, 20, 15, 14, 3, 19, 17, 18, 7, 1, 5, 12, 2, 8, 9, 10, 6, 13, 11.