§ 3. Mr. Shepherdasked the Minister of Transport and Civil Aviation if he is aware that the flow of traffic is often facilitated by the use of a left filter light; and whether he will cause an inquiry to be made to see whether an increasing use can be made of this.
§ Mr. Boyd-CarpenterIn some circumstances left-filters certainly help traffic flow, but they can also cause serious difficulties for pedestrians. I already recommend their installation wherever I think they would be safe and helpful. I do not think a special inquiry would elicit any information not already available.