The traffic system to which vehicles with wheels are forcibly guided on the exact path is called rail (railways, steel ropes, but not vehicles that are not mechanically in contact with the base). The rail has been the backbone of land traffic for more than a century. Hard and smooth wheels are moving on hard and smooth tracks that provide very low rolling resistance, approximately ten times less than road vehicle resistance, which makes it possible to ride trains of such masses and length, witch is not possible for any land transport vehicle. The railway line consists of infrastructure subsystems required for safe and uninterrupted movement of railway traffic in accordance with the laws in force. Also, under the concept of railroad track, there is also land under the rail with the belt and the air space above the rail at a height of 12 and 14 meters at a voltage greater than 220 kV, above the upper edge of the rails. There are 4 infrastructure subsystems: power, traffic control and signal security, other functional parts and equipment, and the most important, construction, infrastructure subsystem consists of the lower and upper rail system. The upper configuration includes construction (ballast, tracks on a firm base and crossbars) and elements (track rails, guides, sleepers and concrete support elements, track curtains, signal and track marks and rest) of the upper rails. Lower structures are made up of structures, constructions (geotechnical and hydro engineering constructions) and equipment (fences, signs and the rest). Under the construction of the lower tier structure we designate geotechnical constructions, constructive structures and railway - road and pedestrian crossings. The railway road crossing (RRC) is the crossing point of the roadway over the railway line, that is, the place where the pavement and the upper edge of the rails are located in the same level. Due to the increased risk of road and railway vehicles collisions, there are regulations that must be followed when constructing such crossings.