Network Rail say a drunken passenger is lucky to be alive after falling under the wheels of a moving train at Piccadilly Station in Manchester.
The man was filmed leaning against a moving carriage.
This footage from Network Rail shows him losing his balance and falling into the gap between the platform and train.
The incident is being used as part of a new safety campaign urging travellers to take extra care at busy stations.
Network Rail has called the government's announcement of the HS2 extension a "game-changer" for Britain's railway network. Chief executive David Higgins said:
He added that Network Rail was already planning to ensure that HS2 would integrate with the existing network with as little disruption as possible.