The Drive towards Optimization of Road Lighting Energy Consumption Based on Mesopic Vision—A Suburban Street Case Study

This paper presents the research of optimization road lighting energy consumption by utilizing fact human twilight and night vision (mesopic vision) dependency on luminance level lamp’s light spectral composition. The was conducted for a suburban street illuminated smart LED luminaires with luminous flux control system which different levels can be achieved road. is an access leading to town located outskirts Warsaw capital Poland large metropolitan area. Therefore, traffic here quite heavy this in morning evening it very at other times day. In accordance EN 13201 standard, applied illuminate compares scenarios question. first scenario, compliant M4, M5, M6 class requirements depending time second each M class, values provided standard have been reduced resulting from their conversion corresponding mesopic values. has shown that 15% saving per year electricity possible such conversion. efficiency installation improved matching vision.