SEVEN people in five hours were caught risking their lives by ignoring level crossing lights at Feltham train station.
The barrier was the focus of a crackdown by British Transport Police on Tuesday as part of an International Level Crossing Day of Action.
Between 3.30pm and 8pm, six people ran over the tracks while lights warned of an approaching train. One person was issued with a fine for walking on to the tracks.
PC Chris Shepherd said: "This is hugely irresponsible and we will not hesitate to take action against anyone caught doing so."
Thirteen people lost their lives at level crossings last year in Britain.
Since May 2010, drivers in the Greater London area who have committed a road traffic offence at a level crossing have been offered the chance to accept a place on an awareness scheme, instead of receiving a fine of £60 and three penalty points.