Statistical Analysis of the Influence of Lighting Parameters on Photometric Performance in Outdoor Lighting Design

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Abstract

This study examines the effects of several physical design elements on important photometric measurements used in street lighting design, particularly pole height, pole spacing, and luminaire wattage. Indicators including threshold increment, uniformity index, illuminance uniformity, and average luminance were the focus of the analysis. Descriptive statistics, a one-way ANOVA, and visual inspection of data patterns were used to examine these effects across various configurations. The findings demonstrate that a variety of lighting performance indicators significantly impacted by changes in pole height. Additionally significant is the luminaire's wattage, which has a special impact on average luminance, threshold increment, average illuminance, minimum illuminance, and maximum illuminance. The variation of these indicators also showed that the distance between poles influenced lighting quality, particularly when uniformity and overall illumination were considered. In conclusion, these findings provide evidence on how to modify physical factors to satisfy photometric criteria while maintaining good visibility and economical energy use, which aids in guiding practical street lighting design decisions.