Adaptive brightness in road lighting

In the case of road lighting, the brightness of the pavement is uneven. For the sake of simplification, the average luminance of the road surface is taken as an adaptive brightness. In many cases it is often in the vision that higher brightness plays an important role. Think of the bright street lights, car headlights, glowing signal signs, and the reflected light of the road, which together increase the brightness of the light and make it higher than the average brightness of the road. Therefore, compared with the average brightness of the road only, the real vision is more likely to be visual. This effect is particularly important in the residential area of the lighting, because the pedestrian on the street is in the high brightness area. The driver's situation is different, their main observation is the road ahead.

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