Revision of criteria for selection of road lighting class: a pre-study

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The aim of this project is to investigate the potential in decreasing the energy use of road lighting by a revision of the guidelines regarding the selection of lighting level. The starting point of this work has been the method for selection of lighting classes suggested in the recently published technical report CEN/TR 13201-1, which considers road lighting for drivers and for vulnerable road users. In order to investigate whether CEN/TR 13201-1 is applicable in Sweden, a literature review on guidelines and criteria for selection of road lighting classes was carried out, with the aim of identifying criteria that are scientifically grounded. The literature review was supplemented by a workshop where road lighting criteria were discussed by invited road lighting experts from the Nordic countries. The results from the study show that there is some support that the parameters traffic volume, traffic composition, separation of carriageways, ambient luminosity and navigational task are relevant for the selection of road lighting class, but also that there is a lack of knowledge of road users’ needs and experiences of road lighting. The report gives recommendations for further work on a revision of the guidelines for road lighting, and suggestions for further research studies.

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