(1)The Greater London Council (hereafter in this section referred to as " the Council ") may, to such extent as the Council may consider necessary, in connection with any order under section 6 or 9 of this Act made or proposed to be made by the Council, exercise, as respects any road in Greater London which is not a trunk road, any powers exercisable by the highway authority for that road in connection with the placing of traffic signs on or near that road in pursuance of section 55 of this Act, and affix any such sign to any lamppost or other structure in the highway, whether or not belonging to the Council.
(2)The Council may give to the highway authority for any road in Greater London which is not a trunk road such directions with respect to the adjustment, modification or replacement of, or of any part of, the mechanism of traffic signs, being light signals controlled by that authority, as the Council may consider expedient in the interests of the movement of traffic.
(3)As respects any traffic sign lawfully in place in Greater London which is required in connection with an order under section 6 or 9 of this Act, it shall be the duty of the Council—
(a)to take such steps to maintain, and to make such alteration of, that sign as may be necessary or expedient in connection with any such order in connection with which it is required ;
(b)to remove that sign if it ceases to be required in connection with any such order.