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The Impact of New Street Lighting Technologies on Traffic Safety

Ghazwan. Al-Haji
Department of Science and Technology, Linköping University, Norrköping, Sweden
Abstract—Street lighting systems are very important in terms of traffic safety and energy saving. For the purpose of energy saving, new technologies of street lighting have been developed last decade and implemented in several cities worldwide. The most common of new technologies, with most potential of energy saving, are Light Emission Diodes (LED) and Adaptive Lighting Systems (ALS). The impact of these new technologies on road accidents is not well examined yet. This study attempts to evaluate the traffic safety impact and traffic risk of these technologies on road users, mainly drivers and pedestrians. Since the new lighting technologies have been recently tested and applied, the safety impact of them on road users could not be evaluated through direct measures of traffic safety e.g. before/after accident rates. Therefore, this study aims to create a new conceptual framework by introducing some indirect safety measures (e.g. speeding profile, behavior adaptation, traffic conflict, jerky driving and visibility of pedestrians) and presenting relevant performance indicators for future experimental design.

Index Terms—street lighting, night traffic, traffic safety, LED, adaptive lighting systems

Cite: Ghazwan. Al-Haji, "The Impact of New Street Lighting Technologies on Traffic Safety," Journal of Traffic and Logistics Engineering, Vol. 2, No. 3, pp. 202-205, September 2014. doi: 10.12720/jtle.2.3.202-205
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