The article discusses issues related to assessing the quality and safety of road traffic. An analysis of the accident rate on the roads of the southern part of the Far East has been performed. The main causes of traffic accidents are considered. An analysis of the quality of road marking has been performed and an assessment of its durability has been given, depending on the operating conditions. Recommendations for improving the durability of road markings are given.

Keywords: highway, pavement, horizontal markings, traffic safety

The main message of the scientific article is overview of types construction concrete structures at low temperatures. Two main methods of concreting at low temperatures are considered. The first method is using of antifreeze additives. Second method is application of electric heating of concrete with PNSV heating cable. In end of the article shows a technical and economic comparison of these method, is given a short calculation.

Keywords: concrete, reinforced concrete, concreting, low temperatures, hardening problems, concrete strength, antifreeze additives, electric heating of concrete