Road existence is determined by the necessity of the transport communication. The main function of the motorroad as an engineer construction is safe traffic. To a great extent this is guaranteed by observation of the parameters included in the design standards, regulations and other normative papers. In most of the mentioned cases the parameters are motivated by their physics-governed nature and therefore they can ensure safety only from the point of view of mechanical interaction between the road and a car. At the same time there is a series of physiological, psychological and esthetic regularities which will definitely impact the traffic safety on roads as long as a driver - human being is in charge of driving and which are not evaluated ...
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