Average Luminance Calculation in Street Lighting Design, Comparison between BS-EN 13201 and RP-08 Standards

Alexandru Viorel Rusu, Catalin Daniel Galatanu, Gheorghe Livint and Dorin Dumitru Lucache
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Alexandru Viorel Rusu: Faculty of Electrical Engineering, Technical University Gheorghe Asachi, 700050 Iasi, Romania
Catalin Daniel Galatanu: Faculty of Civil Engineering and Building Services, Technical University Gheorghe Asachi, 700050 Iasi, Romania
Gheorghe Livint: Faculty of Electrical Engineering, Technical University Gheorghe Asachi, 700050 Iasi, Romania
Dorin Dumitru Lucache: Faculty of Electrical Engineering, Technical University Gheorghe Asachi, 700050 Iasi, Romania

Sustainability, 2021, vol. 13, issue 18, 1-15

Abstract: This paper presents a study on the influence of the observer’s position in relation to the calculation surface. This is the initial observation of the research, respectively that the two standards consider the position of the observer differently. For these situations, two types of calculations were performed. For the first set of calculations, the software used was DIALux 4.13 as this software can perform calculations in line with the RP-08 standard. The second set of calculations was performed with a script that offers the possibility to change the observer’s position. The conclusion was that EN-13201 has a better approach, but both standards could be improved. The second case study refers to the influence of the longitudinal observer position in an average luminance calculation. If one considers RP-08 as a guideline for performing the calculations, the conclusions are that changing the distance from the observer to the calculation surface has absolutely no effect on the average luminance value. On the other hand, if European standards are used as a guideline, changing the distance (from the standardized 60 m, either closer to the calculation surface or further away) can influence the overall results in average luminance and uniformity. Taking into account the results of these two case studies, the conclusion is that both RP-08 and BS-EN 13201 should be updated so that the observer’s distance in relation to the calculation surface would be a variable dependent on the stopping distance calculated based on the speed limit of the road.

Keywords: average luminance; lighting class; asphalt reflection; observer; uniformity (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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