There were seven near-misses between trains and cars in Kent last year - and that is just the "tip of the iceberg".

The figures came to light as Network Rail, the non-profit firm responsible for the railway infrastructure, today called on the Government to do more to tackle level-crossing safety.

While all main lines are guarded by red flashing lights and often barriers, there are increasing numbers of drivers willing to play Russian Roulette by ignoring the lights and racing the train.

Others have been spotted swerving round barriers to make up a few seconds.

The seven near misses were just those reported by train drivers and the public, so it is thought there could be many more. It also does not include unsafe use, such as people climbing over lowered barriers.

Network Rail spokesman Gary Gaskarth said: "We're just scratching the surface and we feel there are many, many more. That is why we are carrying on with this campaign."

The incidents in Kent included two on the freight-only line at Grain, one on a farm crossing at Minster (Thanet) and another on the Walter's Hall crossing at Minster, one at Simmonds Crossing at Minnis Bay, near Ramsgate, one at Shornemead between Higham and Gravesend, and one at Wateringbury, on the line between Maidstone and Paddock Wood.

There were over 3,000 reported incidents of misuse across the country in 2009 with 143 reported in Kent.

Network Rail wants the driving theory test to include compulsory questions on level crossings to enforce learner drivers’ understanding of the Highway Code and stamp out crazy driving behaviour such as dodging around barriers and running red lights as trains approach. Around 95 per cent of incidents at level crossings are down to motorist or pedestrian misuse or error.

Andrew Howard, AA Head of Road Safety, said "Level crossings are one of the few places where one motorist’s irresponsibility can affect the safety of many, many people. Motorists must be aware of the rules, which are simple, logical and well signed. The risk in trying to save two minutes jumping a level crossing just isn't worth it."

• Two drivers on the steam-hauled Romney, Hythe and Dymchurch railway have been killed in the past 10 years thanks tomotorists driving past warning lights.