A public announcement that a passenger was trapped prompted about 40 people to join train officials to push the carriage.
The 32-ton train's suspension system allows it to tilt slightly to either side, allowing the woman to escape.
The unnamed woman in her 30s was then pulled out safe and uninjured.
Everyone in the station applauded the "rescue effort" and operations resumed, with just a slight delay of 8-minutes to the entire Keihin Tohoku Line.
It was a good news, but in the first place, MIND THE GAP!!