Author(s)

M.F. Smith

Abstract

Inland and estuaral navigation safety system for small craft based on the SGNI/CEVNI standards M.F. Smith British Waterways North East Region, 1 Dock Street, Leeds, UK If you have seen photographs or have visited Swansea Marina and the associated Tawe Barrage in South Wales, you may have observed the buoys and booms landward of this. You would then have noticed a signing system giving direction to yachtsmen, advising of the change of course required to avoid the dangers ahead. This signing system was developed after two fatal accidents had occured at the same weir on the River Trent, in Nottinghamshire, England. In 1975, a night accident claimed the lives of 10 soldiers when their craft was driven over Cromwell weir. Power failure had extinguished the adjacent lock lights and this was believed to have been the primary cause. Following this accident, standby generators were installed at the lock, in the event of any future power failure.

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