§ VISCOUNT HANWORTHasked Her Majesty's Government:
What percentage of traffic lights in Inner London are defective on average at any one time and therefore revert to fixed time intervals.
§ LORD SANDFORDThe precise information asked for is not available. Just under half the number of vehicle-actuated installations in the Inner London Area have at present reverted to fixed-time intervals as a result of defects. The arrangements for the repair and maintenance of traffic light signals generally are under review between the Department, the local authorities and the signal companies.