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Determination of Mariners' Reaction Times

Published online by Cambridge University Press:  01 September 1978

R. G. Curtis
R. G. Curtis
Affiliation:
(National Maritime Institute)
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Extract

This account of a recent simulator experiment at the City of London Polytechnic on encounter reaction times at sea will also be published as an internal National Maritime Institute report.

Two ships are said to have an encounter when they pass within a certain distance of one another, say half a mile. The encounter rate bears a relation to the collision rate in a given area of sea and consequently it is desirable to minimize the encounter rate. The effect of routing in sea areas with a high density of shipping has been to reduce the total number of encounters but to increase the number of overtakings. Thus the introduction of a routing scheme greatly increases the proportion of overtaking encounters in the main lanes. For example, the routing scheme in the Dover Strait (with I per cent of through rogues) has increased the proportion of potential overtaking encounters from 27 to 95 per cent.

Type
Research Article
Information
The Journal of Navigation , Volume 31 , Issue 3 , September 1978 , pp. 408 - 417
Copyright
Copyright © The Royal Institute of Navigation 1978

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References

REFERENCES

1Lewison, G. R. G. (1977). The modelling of marine traffic flows and potential encounters, IMA symposium on Mathematical aspects of marine traffic, London.Google Scholar
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5Clarke, D., Patterson, D. R. and Wooderson, R. K. (1973). Manoeuvring trials with the 193,000 tonne deadweight tanker Esso Bernicia, The Naval Architect, April, p. 89.Google Scholar