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One of the conditions for safe and comfortable driving on roads is a surface that is reflective and clearly visible at night. The luminance of a road surface depends on the amount of light falling on it and the reflectance properties of the road surface at any point. The reflectance of a road surface depends on its physical condition, age and type, the direction of lighting, and the conditions of observation. Different road surfaces may have various reflectance characteristics depending on the surface texture, materiality and binder. Experimental studies were performed on cement concrete modular pavement slabs that differ in color and texture of the surface. The analysis of the research results showed the differences between the reflective luminance characteristics of the surface of cement concrete modular pavement, taking into account the color of the coating, the texture properties of the coating surface and surface conditions. In the case of wet or damp concrete modular coatings, the reduced luminosity coefficient is about 60 percent lower than in dry ones. The reduced luminance coefficient of the light gray coating is about 38 percent higher than that of the darker shade coating (red and dark gray). The results obtained from the research are significant for street designers in choosing the type of pavement and designing street lighting. [ABSTRACT FROM AUTHOR]

The paper is dedicated to urban night lighting analysis. Till nowadays the meaning of urban night lighting which forms the visual urban identity wasn't a research object. Urban lighting has both social and economic benefit, that is why in many cases the city is illuminated, but quite spontaneous together with the process of energetic economics evolution. The artistic value of urban night lighting is still not discovered in Lithuania. The aesthetics of illuminated streets, pedestrian areas, squares, plants, monuments and exclusive architectural objects, which form urban night scenery, is still not valued and, fortunately, it has substantial future vista. [ABSTRACT FROM AUTHOR]