asked the Minister of Transport whether he will now publish an up-to-date report on the lessons to be learnt from the use of motorways with particular reference to the desirability of imposing a maximum speed limit and to the need for special precautions in foggy weather.

Experience in the use of motorways is continuously applied in the development of our motorway system; but techniques, both here and abroad, are still in a stage of evolution, and I think it would be premature to try to reach any firm conclusions at an early date.The question of a maximum speed limit for motorways will be reviewed as traffic intensities increase. As regards precautions in fog, I have nothing to add to my reply to the hon. Member for Brentford and Chiswick (Mr. Dudley Smith) yesterday.