So for over 30 years train/metro operators have compromised safety by having DOO▸ ? 30% of all passenger train movements in the UK▸ are running in safety compromised state?
Where's the public outcry?
Yes. I did a quick search in the
RAIB▸ website with the term 'dispatch'. I have found 4 reports since the start of 2011. (This is only a quick search, I don't claim it to be comprehensive.) 3 involved DOO services and 1, the tragic accident at St James Street, involved a service worked with a guard and driver. In all 3 of the DOO incidents I believe that if they had been worked with a guard and driver the incident could have been avoided, or the consequences less severe.
Charing Cross: One of the RAIB's recommendations was that platform staff should have a way of alerting the driver to an emergency once the train had been cleared to proceed. On services worked by a guard the guard will be observing the dispatch process throughout (as they don't have to concentrate on driving the train out of the platform) and they can either stop them train themselves if need be, or can stop the train if the platform staff signal to them that it needs to be stopped.
King's Cross: The service was dispatched by just one person who failed to notice a person trapped in the door. If the service had been worked by a guard there would have been an extra pair of eyes checking the train, and they may have spotted the trapped passenger. Again the dispatcher had no way of stopping the train once it started. Although the emergency alarm was pulled the driver did not stop the train immediately. If a guard had become aware of the dangerous situation and given the driver the stop signal over the driver/guard communication system the train would have been stopped immediately.
Brentwood: The positioning of the DOO equipment relative to the stop boards meant that the driver was unable to have a perfect view of the platform. A guard may have had a better view of the whole train, being able to view from the platform itself.
Another incident of relevance is the failure of a train at
Kentish Town. This highlights the impossible task facing the driver of a DOO train when there train fails and they have to attempt to rectify the fault, keep in touch with control and signalling staff, keep passengers informed and manage passengers and the conditions they are in. This led to a lack of communication to the passengers, an increasing number of emergency alarms being pulled and eventually some passengers opening the doors and evacuating the train themselves. As the drive was unable to repeatedly reset the emergency alarms they had to override the safety systems and the train moved with some doors open and passengers near the track. The RAIB noted that the driver became overwhelmed as a result of the magnitude of the task facing them. The lack of support given to the driver was an underlying factor in the incident. Had there been a guard on board they could have focused on communicating with passengers and attempting to manage the conditions on board the train, allowing the driver to concentrate on rectifying the faults with train, liaising with operations staff and making arrangements for the rescue of the train.