In Japan, millions of people rely on the subway to get to work since the trains always run on time.
The number of people that ride them during rush hour is incredible, and the crowd is heaviest in the mornings.
To make things work, riders waste no time getting aboard, they fill the cars to capacity and even a little bit more. It’s the “little bit more” that could cause problems. If the doors can’t close, the train can’t leave on time.
To ensure the cars are full and the doors are closed, uniformed attendants cram the last few riders into the cars.
Think about an overstuffed suitcase you have to sit on to close and you’re just about ready to be a subway attendant.