HC Deb 07 July 1971 vol 820 c385W
39. Sir J. Langford-Holt

asked the Secretary of State for the Environment, in view of the accident risks caused by the lights of oncoming vehicles, arising from the absence of hedges on motorways, and by the use of physical barriers, whether he will ensure that a light barrier is incorporated in all physical barriers he provides on motorways.

Mr. Graham Page

Experiments with the use of such screening have so far proved inconclusive from the road safety aspect but I am looking into the possibility of further trials with a different type.