§ Mr. Dormand
asked the Secretary of State for the Environment how many miles of central barrier have been erected on motorways since June, 1970; what was the average cost per mile; and how many miles of motorway do not have a central barrier.
§ Mr. Peyton
Approximately 600 at an average estimated cost per mile of £11,000. At present 347 miles of motor-way do not have a central barrier.