One of them has already fallen asleep waiting for the second train…

I think this is one of the best examples I’ve discovered where you have to curse that there is no transport switch button in the game.
To throw in a suggestion, why not just making use of that tiny transport icon in the upper right corner shown below?
That icon screams for a clickable switch button. Maybe it’s not obvious there but still a good place close to the info-button without need to totally revamp the UI. Sure, you don’t need a switch that often, but snipers sometimes do…

