In the early morning on Sunday 26 May a track trolley ran away on a descending gradient towards a site of work and a team of track workers.

The trolley came to a stop after it collided with equipment being used for moving rails within the site of work. The track workers had seen the runaway trolley approaching and moved clear of its path before the collision occurred.

No one was injured by the accident. The trolley derailed in the collision, which also caused damage to it and to the rail-moving equipment that it struck.

At the time of the accident, the trolley was being used to transport work equipment. It rolled away from the team who were using it, after its brakes became ineffective. The trolley travelled uncontrolled for approximately 1100 meters before the collision occurred.

The RAIB investigation will now seek to identify the sequence of events which led to the accident before publishing a safety report.