HC Deb 01 December 1965 vol 721 c189W
78. Mr. Allason

asked the Minister of Transport whether he will use telephone impulses to switch on the flashing warning beacons on motorways.

Mr. Tom Fraser

Control of the warning signs on M.5 is already effected by means of the emergency telephone system. It was not possible to use this system for the flashing amber lights, to which I referred on 24th November, if they were to be in operation by Christmas.