iOS - Android This can cause trains to overshoot signals or platforms and affect signalling systems - making it harder to track where trains are on the network.From this week until December, Scotland's Railway's fleet of specialist rail-head treatment trains will be in operation around-the-clock, using high-pressure water jets to clean tracks before coating them with a special adhesive.At a further 110 locations across the network, special "traction gel applicators" have been installed to help