Train pushers work in the Japanese subway: In Tokyo, one of the most crowded cities in the world, "train pushers" are at work so that people can get on the subway.
Tokyo, the capital of Japan, is among the most populous cities in the world with a population of 38 million. As such, it is almost impossible to take the subway during the busiest hours of the day.
The method used by the Japanese for this is quite interesting. There are 'train pushers' in the stations to fit the passengers in the subway.