On a dark and wet evening, a
Connex South Eastern train from
Dover Priory to
Charing Cross collided with a
Thameslink train from
Brighton to
Bedford causing derailment to both trains. The accident resulted in no fatalities and four injuries. The
British Transport Police reported that eight passengers had been taken to hospital with minor bumps, bruises and
whiplash but none were detained. One of the uninjured passengers complained that the Train Operating Companies had failed to provide support after the crash. He was awarded compensation in a court case but commented "And there I believe the matter will rest until the next rail crash when we the long-suffering passengers should be aware that unless we are carted off to hospital we will have to fend for ourselves wherever we are dumped". Connex Rail admitted that its driver passed the signal at danger although the existing
Automatic Warning System was working. Following this and other similar accidents
Railtrack was given six months to develop a plan to roll out the new
Train Protection & Warning System which would automatically apply the brakes if a train passed a red signal. The Thameslink train had been held at a danger (red) signal until the route was set for it to cross from the
Brighton Main Line onto the London Bridge Up Loop Line, and the signal then cleared. The Connex train, which was approaching from behind, passed a preliminary caution (double yellow) signal then a caution (yellow) signal and then a danger (red) signal. It continued for 283 metres (309 yards) past the red signal until the point where the two lines converged. It was travelling at an estimated speed of when it collided with the Thameslink train which was estimated to be travelling at around . Both trains were derailed and damage was caused to most of the carriages. Disruption was caused to other rail services, although trains continued to run past the accident site on the
Cannon Street lines. The emergency services struggled to access the accident scene but eventually 282 people were evacuated from these two trains. Some 200 people from another train a short distance behind (Connex South Central service from
London Bridge to
Guildford train) were initially left unsupervised, and had to find their own way to evacuate themselves in the inclement weather. Some were evacuated via the disused
Spa Road railway station buildings, the former terminus of the South East & Chatham Railway. Trains were still running on the south eastern side, some away from passengers evacuating the Guildford bound train. The driver of the Connex train had already
passed a signal at danger without authority on a previous occasion, and was still under special supervision because of this. Following the accident, he was permanently removed from driving duties. There was no history of previous
Category A SPADs at this signal. ==Junction layout==