HC Deb 29 January 1985 vol 72 c83W
Sir John Farr

asked the Secretary of State for Transport if it is proposed to introduce the Marconi MET-3 fog detection system on motorway black spots at an early date.

Mrs. Chalker

Marconi fog detection systems will be installed on a number of selected sites on the M25 motorway. Further installation will depend on the results of the trials on the M4 motorway and the benefits of other sensing devices.