Integral assessment of engineering protection structures of transport structures from hydrodynamic effects of sea waves

When making decisions on the placement of road and railway route plans, the location of bridge crossings and other transport infrastructure facilities, it is important to assess the size of capital investments. A significant part of the cost is the provision of engineering protection. In this paper, a method is proposed for the integral assessment of the need for the construction and selection of protective structures of transport facilities from the hydrodynamic effects of sea waves. An algorithm is described for determining the degree of need for engineering protection of transport facilities and their infrastructure based on an analysis and expert assessment of the state of the coast, facilities and processes in the coastal zone of the seas. Consideration of the influence of objects and processes in the coastal zone when choosing the type of engineering protection structures from the hydrodynamic effects of the natural aquatic environment is proposed to be determined by quantitative integral assessment. A preliminary consolidated estimate of the cost of engineering protection measures is given, depending on the degree of need for protection, which, in turn, is numerically expressed by the degree of need for the construction and selection of the type of engineering protection structures. The results of the study can be used to assess the risk of an accident (by determining the hazard coefficient based on an indicator that takes into account the possible consequences and the amount of material damage caused by the accident), as well as to determine the aggregated economic indicators of the construction cost.