§ Mr. Muddasked the Secretary of State for Transport if any figures are available from highway authorities which have assessed the cost-effectiveness of edgelines for maintenance savings; and if he will consider collating centrally details published by highway authorities of all engineering improvements using road markings.
§ Mr. Peter BottomleyThe Department commissioned a study in 1980 on this subject but it was inconclusive. I am unaware of any such studies by other highway authorities.
I am not prepared to consider centrally collating the information on road markings; this would be a major exercise and I am doubtful about the benefits to be gained from such an initiative.