It's the width of a Roman Chariot - what's wrong with that 8) It was the first and that's the way it goes.
Not sure why you need a double decker train and I think you could if you really packed people in. You can just make them twice as long. Railways don't have the same constraints as nearly anything else.
I remember the carriages of the later half of C20 and each person had a huge amount of space. In one design you had a corridor running the length of the carriage with a series of bays with seating for up to four or five on each side, loads of leg room and a luggage rack above. Separate door to the platform for each bay. Obviously you had to puff furiously on your pipe or fags to fill the space with healthy smoke.
Not sure why you need a double decker train and I think you could if you really packed people in. You can just make them twice as long. Railways don't have the same constraints as nearly anything else.
I remember the carriages of the later half of C20 and each person had a huge amount of space. In one design you had a corridor running the length of the carriage with a series of bays with seating for up to four or five on each side, loads of leg room and a luggage rack above. Separate door to the platform for each bay. Obviously you had to puff furiously on your pipe or fags to fill the space with healthy smoke.