Signallers Avoiding Unnecessary Stop Aspects
Signallers have a vital role in delivering a safe and efficient railway. When it comes to SPADs, avoiding unnecessary stop aspects is the best way a signaller can help. Clearly, signallers are not in the business of stopping trains or holding signals at red without good reason. However, mistakes or oversights do occur and when operating in abnormal or degraded situations, this will stretch any signaller.
A review of SPAD investigation reports identified some examples of how unnecessary stop aspects contribute to SPADs: