The Challenge The continued incidence of accidents at level crossings has led to a demand for a brighter, more visible, and more easily adjusted WigWag (Road Traffic Light Signal). Although LEDs have been used in WigWag modules for some years, there are still many ‘incandescent lamp’ versions in service. Network Rail is working to both replace those which remain in service, and to upgrade to WigWags with higher luminous intensity, and t

Join for free to read