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Estimating the Number of Tanker Collisions in the Gulf of Finland in 2015

Hanninen P., Kujala P., Ylitalo J., Kuronen J.

TransNav : International Journal on Marine Navigation and Safety of Sea Transportation

2012

Vol. 6, no. 3

367--373

The paper presents a model for estimating the number of ship-ship collisions for future traffic scenarios. The modeling is based on an approach where the number of collisions in an area is estimated as a product of the number collision candidates, i.e. the number of collisions of two ships, if no evasive maneuvers were made, and a causation probability describing the probability of making no evasive maneuvers. However, the number of collisions is presented as a combination of binomially distributed random variables. The model is applied for the assessment of tanker collision frequency in the Gulf of Finland in 2015. 2015 traffic is modeled as three alternative scenarios each having a certain probability of occurrence. The number of collisions can be presented either for each scenario, or as an estimate including the uncertainty in future marine traffic development by taking into account all scenarios and their occurrence probabilities.

Computer Systems Aided Management in Logistics

Chwesiuk K.

TransNav : International Journal on Marine Navigation and Safety of Sea Transportation

2012

Vol. 6, no. 3

413--419

This paper aims at presenting a concept of an integrated computer system of management in logistics, particularly in supply and distribution chains. Consequently, the paper includes the basic idea of the concept of computer-based management in logistics and components of the system, such as CAM and CIM systems in production processes, and management systems for storage, materials flow, and for managing transport, forwarding and logistics companies. The platform which integrates computer-aided management systems is that of electronic data interchange.

Notowania akcji spółek sektora morskiego jako miernik sytuacji na rynku żeglugowym

Wagner N.

Logistyka

2011

nr 5

W artykule scharakteryzowano podobieństwa i różnice występujące w szeregach czasowych notowań wybranych indeksów giełdowych oraz indeksu frachtowego BDI. Wskazano na koniunkturę na rynku żeglugowym oraz sytuację na rynku papierów wartościowych jako układ głównych sił wpływających na notowania indeksu giełdowego spółek z branży morskiej (DJ US Marine Transportation Index).

This article presents similarities and differences in time series of quotations of some stock exchange indices and the Baltic Dry Index. Shipping cycles and the situation on the stock exchange were shown as the main forces which influence the quotations of marine sector (DJ US Marine Transportation).