HC Deb 09 November 1955 vol 545 c1845
40. Captain Pilkington

asked the Minister of Transport and Civil Aviation what experiments he has made in the use of amber-coloured headlights for motor cars, such as are required in France; and his conclusions.

Mr. Boyd-Carpenter

Tests carried out by the Road Research Laboratory showed that there is little difference between white and yellow headlamps of the same intensity in seeing distance or degree of dazzle.

Captain Pilkington

Has my right hon. Friend been in touch with the authorities in France on this matter, and can he say whether they consider the use of amber lights satisfactory?

Mr. Boyd-Carpenter

We have investigated French experience, and I think that the impression which my hon. and gallant Friend has that French headlights dazzle less is due to the fact that, on the whole, they are of a lower power rather than of a different colour.