...and guest intelligence. I know not everyone lives in a city where mass train transportation is available (heck, I don't, but I know how it works), but the lack of common sense is amazing. How hard is it to just board a dang monorail?
So many people hop between packed cars, or run up and down the platform, looking for a car with a seat (while there aren't any) - so they can sit for 1 or 2 stops.
But, I have also seen far too many times where a train is sitting in the station and they just leave the gates and doors open so stragglers at the bottom of the ramp can board...while those stragglers do nothing to hustle. Just send the train already - they can wait for the next one just like I did. Caveat: I'm referring to the times when the train isn't waiting on block clearance.