At least, at peak times, the driver will never be able to claim, "There's not mushroom on top; you'd better wait for the next one." [Hyper-groan!]
... if you want to go where THEY send you!
And, finally ...
Conclusion Number 2
There is some very weird and wonderful database management at work here and, by any measure one might care to use, IT IS WRONG!
It is now the most powerful working steam engine remaining in Europe, and you can see it "in steam" at the Museum at set times each day.
In action it is absolutely terrifying! The huge beast can reverse its drive almost instantly, much faster than fbb can engage reverse gear in his modest motor car.