§ 77. Sir Clive Bossomasked the Secretary of State for the Environment whether he will provide information concerning research conducted by his Department to 103W investigate whether it would be practicable to provide emergency warning signs on motorways which would automatically be operated when there is fog; and what is the estimated cost of providing such equipment.
§ Mr. Eldon GriffithsThe computer controlled signals now being installed on motorways could be automatically operated in fog if a suitable sensor were available. The development of such a device is being investigated. No reliable cost estimate can be given at this stage.