asked the Secretary of State for Scotland what conclusion he has come to as a result of the experimental alternating two-lane and one-lane system on the A.8 between Bangour Hospital and the Broxburn Road; and if he will make a statement.

This experimental system of carriageway markings has been in operation only since June, and although it appears to be working well, I cannot yet be sure of its success. I expect to receive an interim report on its operation from my agent authority and the police early next month.