In the paper the hazard estimation method of assessment of risk on ship routes in terms of the random maps has been proposed. The two-dimensional, multimodal density function of hazard areas has been used. Furthermore, the application to identify the main threats, based on accepted minimum level of safety for particular navigational situation has been propose

In the paper the hazard estimation model of assessment of risk on ship routes in terms of supporting the decision depending on the traffic stream parameters has been proposed. It has been obtained by applying of semi-Markov model of safety and partial models based on consecutive “k out of n: G” systems. Furthermore, the considerations on the aspects of the selection methodology for assessment of risk to a ship route have been presente

Ship traffic on the Baltic Sea grows each year affecting the shipping safety and boosts chances of collision with other vessel. In this article the modelling of hazard of collision is presented for ship routes crossing, taking advantage of function Copula and methods of queuing theory

In many cases the system structure of drifting rescue units (DRU) is not so im-portant as its operational functioning. The DRU failure is caused not only by DRU sys-tem changes, but is adversely affected by environmental factors (action of wind, cur-rents, and waves).

During a storm the life raft is subject to dynamical wind and wave forces. The probabilistic evaluation of the life raft safety is closely connected with random events and values of hydrological and meteorological conditions and the raft load. It is neces-sary to obtain the risk function of raft safety against capsizing.

Since there is a tendency that new build vessels are increasing in size, dredging has become an important part of the development and maintenance strategy for ports serving the largest ships. The increase in the technical depth of vessels drives additional development of the entire port. However, the effectiveness of this type of project depends heavily on unrestricted traffic and uninterrupted operation of the terminal. This paper presents a modelling of various type of dredging activities in ports based on an existing work schedule. A tool used to queue work activities with a vacation was used in this effort. The methodology of creating a dredging time schedule in the port area depended mainly on disentangling interference caused by the ship traffic and dredgers trying to work at the same time.

In this paper, two indexes for own ship risk collision assessment in the restricted water are proposed. The first one concerns the collision threats for ships. The second one describes threats that are generated by human error. It is carried out dynamically with accordance to changes in time. To realize the main aim of the paper, the definition of the extended domain of the ship is introduced. Furthermore, the rules to determine the indexes and range of their values are developed. Finally, a comprehensive model and its potential application are presented. There are some important things to take into account during the model development: the interface, the levels and type of the output information, the type and accuracy of the information about the position and movement dynamics of the particular ships. It gives the opportunity to consider the different operation levels. In addition, it also allows us to take into account the different levels of measurement and the collision risk warnings. This approach can be helpful for both the VTS operator and OOW, the ship’s navigator, as the tool to support the safe navigation in restricted water.