amnesiajune
Senior Member
The Melbourne system use to be double-decker like Sydney but they realized that due to ease of boarding, no stairs, everyone not crowding at the small doors, no accessibility for wheelchairs or baby carriages resulting at more time at the doors, led to far greater station dwell times and much lower reliability and on-time performance.
Melbourne has never used double-decker trains, aside from a single train prototype that they ordered, and Sydney exclusively uses double-deckers...