Increasing Energy Efficiency With Traffic Adapted Intelligent Streetlight Management

Street lighting consumes a non inconsiderable amount of energy. First promising approaches include the deployment of LED based lights to reduce energy consumption. The paper presents a further step of increasing energy efficiency by implementing traffic adapted intelligent management strategies of the luminaries. The idea is to include a communication module into each streetlight that exchanges data via a field aggregated point device with a streetlight management center being an integral part of a traffic management system. Information of the current traffic situation is delivered by traffic sensors and applies traffic adapted control of the luminaries. Consequently, additional energy savings and CO2 reductions are possible without decreasing road safety because a traffic dependent level of luminosity can be provided if needed.