Question to the Department for Transport:

To ask the Secretary of State for Transport, how many miles of wire rope safety barriers are installed on roads managed by National Highways; and in which years they were installed.

National Highways has approximately 143 miles of wire rope safety barrier on its network. For context, the total length of Vehicle Restraint Systems (VRS) on National Highways’ network is approximately 6462 miles, of which wire rope safety barrier is one type. National Highways does not hold the data on when all wire rope safety barriers were installed.