HC Deb 11 December 1950 vol 482 c99W
5. Mr. Erroll

asked the Minister of Transport what steps he is taking to restrict the width and length of two-wheeled trailer caravans which, when towed by fast private cars, sway dangerously and which, on account of their size, often completely obliterate the towing vehicle from the vision of following drivers.

Mr. Barnes

With unimportant exceptions, all trailers drawn by motor vehicles are limited in overall width to 7 ft. 6 ins. and overall length to 22 ft. Private cars drawing caravans are subject to a speed limit of 30 miles an hour. I have no present evidence that two-wheeled caravans are especially unstable or productive of accidents, and I see no ground for any special restriction on them.