 safety achievement of the year national rail awards 2023 network rail porterbrook one big circle dg8 machines with vision three ex passenger class 153 trains have been converted into a transformational switches and crossing train borne monitoring service supporting a new path for safe inspection of assets meaning engineers can dial up inspections and decision making from a desktop and reduce time spent on track this means that on foot inspections of switches and crossings can be reduced by up to 50% 