Searching for emergency-dangerous sections of the vessel's voyage cycle during route planning with an improved content model

Abstract

Navigational and cybernetic risks, which are associated with the wide implementation of  modern equipment of the navigation bridge and the engine boiler room, which use wireless communication lines between them within the ship and when exchanging information between other ships, lead to their vulnerability from external harmful effects, or even failure. This requires the use of backup navigation devices or the implementation of manual classic methods of documenting maneuvering parameters and the corresponding stages of the navigator's work, including when controlling the operation of the main engine. Therefore, it is necessary to carry out a detailed analysis of the presence of accident-dangerous sections of the route, when planning the coordinates of the passage of the vessel in the voyage cycle, and to prepare the vessel and the crew for work in difficult conditions. This will make it possible to develop recommendations on ways to maintain navigational safety and to ensure reliable operation of the main engine to maintain movement under existing restrictions. An analysis of modern regulatory documents of Ukraine and the International Maritime Organization, which regulate the classification, the procedure for investigating accidents in the captaincy of the port of first call, and the accounting of marine accidents and incidents for the transfer of their results to state and international organizations for inclusion in charts, maps and information documents on navigation, was performed. In the future, this information is used when compiling a meaningful transition model. It is shown that taking into account information about marine accidents and incidents, performing an analysis of navigational hazards during sea crossings in the voyage cycle allows you to determine the expected cause, type and consequences of a possible navigational accident and to prepare the ship and the bridge crew for the transition in the conditions of navigational or cybernetic risks. Knowing the boundaries of accident-dangerous areas when planning coordinates allows you to choose methods of determining the location of the vessel by coastal and floating navigational signs, if they exist in this area, or the expected visibility of the horizon for the use of astronomical methods. However, in order to use risk management methods, it is necessary to prepare special data on the height of coastal landmarks, if they are in emergency-dangerous sections of the passage, and to have an electronic device protected from cybernetic attacks to perform navigation calculations. The transition to observational calculation in case of cybernetic attacks and the use of backup devices, tools and methods of work of shipmasters allow us to assert that the navigational safety of maneuvering in the case of navigational and cybernetic risks can be ensured by the existing technical means on the ship. However, for this, it is necessary to determine the presence of accident-dangerous sections of the route when planning the flight cycle, not only based on accidents that have occurred in the past. This will allow, through the analysis of compressed water screenshots, to find navigational hazards and to prepare backup devices, necessary navigational instruments and the bridge crew to work in the conditions of navigational and cybernetic risks.