HC Deb 18 January 1985 vol 71 c251W
Mr. Spearing

asked the Secretary of State for Transport what research has been conducted or is in progress relating to the suppression of spray from heavy vehicles operating in wet conditions; and if he expects substantive conclusions to be reached.

Mrs. Chalker

Research into spray has been carried out by Southampton university and the Transport and Road Research Laboratory. The results have been incorporated into British standard BS AU200 published last year.

Regulations have been made to make this standard mandatory on various classes of heavy lorry, starting with new trailers, this May.

Further research, mainly into the effects of aerodynamics on spray suppression, is continuing.