This paper, which was presented at a meeting of the Merseyside Branch of the Institute on 24 February 1976, is a sequel to Captain Emden's paper on the setting up of the Dover Strait Information Service which was published in the April 1975 issue of this Journal.

It will be recalled that in 1971 the Marine Division of the Department of Trade set in motion a number of activities designed to improve the safety of navigation in the Dover Strait. It is convenient to group these activities under three headings: scientific studies of marine traffic, surveillance and the Information Service, and future developments. It is the purpose of this paper to give an up-to-date report on each of these subjects.