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Simulation study to assess the effect of ship beam on the navigable flow conditions in Paris

Mansuy M., Candries M., Eloot K., Page S.

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

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2023

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Vol. 17 No. 1

25--31

EN

Traversing the river Seine in Paris is challenging for inland vessels due to the density and diversity of local traffic that is encountered in a confined environment. The waterway authority, Voies navigables de France (VNF), commissioned a study to assess the relevance of the current regulations when vessels of varying types cross Paris. A first simulation study showed that regulations based on length only may be too restrictive for ships with smaller beams [1]. This paper presents additional simulations executed on a full mission bridge simulator with ships of reduced beam. The main bottlenecks happen at different locations depending on the ship’s beam and ships with smaller beam can sail at higher water levels than the ships considered in the first study. The maximum water levels for which safe passage is possible were determined for each ship. Finally, recommendations have been formulated, which were then discussed with VNF and stakeholders.

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Stochastic model of ship traffic congestion in waterways for two different traffic solutions based on the Świnoujście– Szczecin case study

Gucma L., Bąk A., Gucma M.

Zeszyty Naukowe Akademii Morskiej w Szczecinie

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2015

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nr 42 (114)

63--69

EN

The paper presents stages of stochastic ship traffic stream model creation which was applied for the optimization of different solutions for the Świnoujście–Szczecin waterway design. The model is based on Monte Carlo methodology and is microscopic, which means that each ship’s model is treated as a separate object possessing given attributes. The main output from the model is the sum of the delay time of waiting ships and the distribution of ships’ queue. Two alternative waterway traffic solutions with different passing places for ships were analyzed in this study and compared with each other. The model was used for the first time for the optimization of the modernized Szczecin–Świnoujście waterway in respect of two different solutions of passing places for ships.

3

Generation of Electronic Nautical Chart Data for Assessment of Navigational Safety in Harbour and Waterway Design

Guan K., Shi C., Wu S., Xu T.

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

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2010

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Vol. 4, no. 1

17--22

EN

Navigational simulator is widely applied in the assessment of Navigational Safety in the harbour and waterway design. According to the needs of ENC(Electronic Nautical Chart) data in the navigational assessment, this paper analyzes the source of ENC data, such as S-57 data, MVCF(Military Vector Chart Format) data and CAD(Computer Aided Design) data. An effective method of ENC data generation has been developed. Special techniques are investigated for generating ENC data, such as ENC data structure design-ing, chart data conversion, digitization method of raster images of CAD design drawing, optimization ap-proaches and data integration methods. Software has been developed to edit the chart data with good perfor-mance. The technologies developed in this paper have been applied to more than 100 practical projects and successful results have been obtained.

4

Application of shiphandling simulation to harbour and waterway design

Misiąg W.A.

Polish Maritime Research

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1999

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nr 4

17-20

EN

The paper describes the problem of aiding the harbour layout design through computer simulation of ship motion. The key aspect of this support relies on treatment of the ship and the commanding pilot as a stochastic sensor testing the given harbour layout under varying enviromental conditions. The role and effectiveness of the ship motion simulation in the harbour design are discussed in reference to other existing harbour design support methods. The paper presents an example of simulation experiment which was used for the selection of the harbour layout during planning of the expansion of Port of Calao, Peru. Such example may be used as patern for nautical analyses with the application of shiphandling simulation technology. The paper also evaluates the degree of fulfilment of the simulation objectives and points out the areas for further research.