In addition to adequate facilities, public transportation in Japan is also timely. The driver is also not reckless because the speed of the vehicle is limited and no one tried to break it.
The bus was not long waiting for other passengers. Just 2 minutes up the passenger, then the bus back up. Of course this is rare in the country.
They did not wait until the seat was fully occupied by the passengers. Although only one passenger is on the bus, they will still operate.
The driver is not the only one who is orderly in Japan. Passengers must also be disciplined while in Japan. Entry into the bus, And required to use seat belt like a private car.