[Ann Drysdale]

I believe they used the perfectly comprehensible (to me) phrase "a complete standstill" until someone perceived that as tautology.

Anyway, it only applies to those awful trains where you have to lean out of an opened window to depress a handle on the outside of an outward-opening door. The Zen doors that say "press when illuminated" are under the control of the conductor so that passengers cannot be prematurely ejaculated.