The Case of Dynamic Street Lighting An exploration of long-term data collection

Dynamic Street Lighting Systems (DSLS) have been advertised as a means to reduce cost, reduce light pollution and increase feelings of safety. The dynamism is based on sensing and actuation, and uses communication between the light poles. While there have been many proposals for dynamic street lighting there is actually little data available about their operation. In this paper we present results from the monitoring of an installed DSLS in Eindhoven, The Netherlands for a period of more than a year. Besides questions of energy saving, we examined commissioning problems, effects of message loss, effects of the weather and general performance characteristics. The contribution includes a novel model for describing the outcomes of metrics as a function of sensor information. The results demonstrate that energy saving can be a strong driver for the introduction of DSLS but economic savings much less; the results also show a versatile usage of the collected data.