HC Deb 28 July 1937 vol 326 c3122W
Mr. Muff

asked the Minister of Transport whether he is aware that stop-and-go lights are not standardised, and that the colours of the lights at various controlled crossings change at different speeds; and will he give instructions that all traffic lights shall be standardised?

Mr. Burgin

It is impracticable to standardise the timing of traffic light signals of the vehicle actuated type as they are designed to meet traffic requirements and must, therefore, vary according to the demands of traffic. I hope, however, to issue shortly a circular to highway authorities with a view to standardising the amber period in these signals.