§ 52. Captain CROOKSHANKasked the Minister of Transport if the experiments made by his Department have indicated which is the best road surface from the point of view of visibility at night?
§ Mr. HERBERT MORRISONThe answer is in the negative. It seems doubtful whether any one material could be proved to be invariably the best from 1667 the point of view of visibility at night under all the widely varying climatic and traffic conditions to which roads are subject.