The possibilities of using indirect measures of traffic safety risk, i.e., speed and vehicle spacing, were also indicated. Preliminary results of studies on the impact of the time of day on speed and the occurrence of dangerous gaps between vehicles were described.Visibility conditions on the road, including the ability of drivers to perceive the road image, are one of the fundamental factors determining road safety. It is assumed that nearly 90% of information relevant to making traffic decisions is visual. For this reason, it is extremely important, on the one hand, to have very good exposure of the road elements themselves (the ability to perceive them under various conditions) and, on the other hand, the ability of road users to perceive various stimuli. In both cases, lighting conditions play a significant role, and critical situations can be caused by insufficient lighting for proper exposure and perception of the road. These premises alone allow (…)
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Source: Logistyka Magazine
Research on road accident risks at night – PDF file for download