Details (RL read field instructions carefully):
This is the "local" train ride to Babylon. This train travels on flat roads at an average speed of 16 mph. It will make stops for hydration, cheerful banter, and to allow slower riders to catch up. Any B level rider is welcome to ride this train.
There may also be an "express" train leaving the station at the same time. The "express" travels at an average speed of 18-20+ mph. "Express" train departures are not guaranteed. If someone prefers an "express" ride, hopefully they will be joined by other "express" riders at the station.
Otherwise they will be stuck riding the "local".