Space Syntax Analysis Applied to Urban Street Lighting: Relations between Spatial Properties and Lighting Levels

According to the international technical standards, higher lighting levels (luminance andilluminance levels) are expected in trafficked and central roads (where restrictive minimum lightingrequirements are necessary) and lower lighting levels are expected in peripheral and less traffickedroads. Starting from this assumption, in this paper, the authors analyse the correlations between spatialproperties (expressed by spatial indicators, for example, the integration index and the choice index)and lighting levels (expressed by lighting parameters, for example luminance and illuminance) uponroads of an urban context. The analysis has been applied to the case study of the medium sized town ofPontedera (central Italy). From the obtained results, it has been possible to observe how the correlationsbetween integration index and luminance and illuminance values are significant in the case of roadsequipped with lighting systems able to satisfy the lighting requirements established by the regulations.The presence of the discussed correlations lays the foundation for a change in the lighting designapproach on urban scale, being able to set lighting requirements on the basis of space syntax resultswithout the use of traditional methods of road classifications involving traffic volume estimations.