Loud/annoying/effective enough door close chimes fast/slow enough to ensure ontime departures? Thick enough rubber strips to prevent the door slamming into your fingers and crushing your bones? As a commuter, specialist, enthusiast, and just everyday-traveller with the railways, I've been on, or seen, some networks where doors are done right — and some that struggle. The last thing we want is for people to be dragged with a door shut — and rider taken hostage!