A preserved railway in the Forest of Dean has been heavily criticised after an accident last August (link below.)
http://news.bbc.co.uk/1/hi/england/gloucestershire/7486905.stm

A steam locomotive hit a partially-open level-crossing in Lydney and continued through to the town's station.

A volunteer for Dean Forest Railway was seriously injured when the train hit the gate as he tried to open it.

The Railway Accident Investigation Branch (RAIB) said the train was going too fast and the crew had not taken proper account of the wet conditions.

The RAIB's report also said the locomotive crew's "lack of training and experience in controlling this type of train in these conditions" had contributed to the accident.

Also, the "failure of equipment that warned level-crossing operators that a train was approaching and the lack of any system for informing the train crew that this equipment was not working", were causal factors.

The RAIB made 10 recommendations, many of which have now been implemented by Dean Forest Railway.

These include additional training for crews, making changes to the warning system at the level-crossing and appointing a qualified person to act as health and safety director.