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A Computer Simulation of Marine Traffic Using Domains and Arenas

Published online by Cambridge University Press:  23 November 2009

P. V. Davis ,
M. J. Dove  and
C. T. Stockel
P. V. Davis
Affiliation:
(Plymouth Polytechnic)
M. J. Dove
Affiliation:
(Plymouth Polytechnic)
C. T. Stockel
Affiliation:
(Plymouth Polytechnic)
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Extract

This paper outlines the concept of a domain and an evasion area, called an arena, around a ship which are then applied to produce a computer model of ship behaviour. The arena determines when a ship takes avoiding action, as does the land arena which reacts with a discrete series of coastal points to prevent the ship running aground.

The increase in the number and size of ships has resulted in the introduction of traffic routing schemes and the need to understand ship behaviour more thoroughly. The concept of ‘the effective area around a ship which a navigator would like to keep clear with respect to other ships and stationary objects’ has been used by various authors including Goodwin, Fujii and Lewison with varying names such as domain, collision diameters and encounter area. There has been no fixed shape for these areas. Some are circular, others elliptical, while Goodwin's has three segments each with its own portion of a circle. By developing the theory of the domain, it was hoped to be able to produce a model of traffic behaviour which could be used to simulate traffic flows, or specific incidents, in order to study them more fully.

Type
Research Article
Information
The Journal of Navigation , Volume 33 , Issue 2 , May 1980 , pp. 215 - 222
Copyright
Copyright © The Royal Institute of Navigation 1980

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References

REFERENCES

1Goodwin, E. M. (1975). A statistical study of ship domains. This Journal, 28, 328.Google Scholar
2Fujii, Y. (1977). Development of marine traffic engineering in Japan. This Journal, 30, 86.Google Scholar
3Lewison, G. R. G. (1978). The risk of a ship encounter leading to a collision. This Journal, 31, 384.Google Scholar
4Limbach, K. (1977). Behaviour of navigators in critical traffic situations. Paper at Symposium on Human Factors in the Design and Operation of Ships. February 1977.Google Scholar
6Dove, M. J. and Fortescue, P. W. (1977). A mathematical model for the design/evaluation of automatic pilotage of berthing systems for large ships. Paper at Symposium on Data and Information Processing in Navigation Systems, 6 September 1977. Institute of Measurement and Control.Google Scholar