§ Mr. Andrew Bowdenasked the Secretary of State for Transport when the experiments into directional audible units and special push button units for pelican crossings will be completed; and when the units will be available for general use.
§ Mrs. ChalkerThe experiments using both directional audible units and tactile push button units include an evaluation phase of the production equipment which should be completed by late 1986. Subject to successful evaluation the units should be available for general use during 1987.