A lookout warning system uses trained lookouts positioned at sighting distances from the work group to warn of approaching trains. This system is used when other protection methods such as possession or line blockage are not available. The lookout's warning gives workers just enough time to move to a position of safety. Failure of this system has fatal consequences. This talk covers the rules for lookout warning systems on or near the railway.
Key Hazards
Workers struck by trains when the warning is too late or not heard
Lookout distracted or unable to see trains approaching at high speed
Inadequate sighting distance for the line speed causing insufficient warning time
Workers too slow to reach a position of safety after the warning is given
Control Measures
Ensure lookouts are trained and certified as competent by the infrastructure controller.
Calculate the required sighting distance based on the line speed and confirm it is achievable.
Position lookouts where they have a clear, unobstructed view of approaching trains.
Agree the warning signal and confirm all workers can hear it above ambient site noise.
Identify and brief all workers on their designated position of safety before work begins.
Practise the warning and withdrawal procedure before the first train movement of the shift.
Do not allow any work to commence if the sighting distance cannot be maintained.
Ensure the lookout has no other duties during the period they are on lookout duty.
Provide the lookout with a horn, flag, and two-way radio as specified in the safe system of work.
Remember
Lookouts must be trained, certified, and have no other duties during lookout periods
The sighting distance must be calculated for the line speed and confirmed as achievable
All workers must know the warning signal and their position of safety before work starts
Practise the warning and withdrawal procedure before the first train movement of each shift
Work must not start if the required sighting distance cannot be maintained at all times
Applicable Legislation: CDM 2015 · ROGS 2006 (Railways and Other Guided Transport Systems) · Network Rail Standards · Rule Book GE/RT8000