1. The specified roads are—
(a)that length of the clockwise carriageway of the M25 beginning in the vicinity of junction 16 at marker post 102/8 and ending at the start of the northern parapet railing of the western bridge over the circulatory carriageway of the A1 at junction 23;
(b)that length of the anti-clockwise carriageway of the M25 beginning at the start of the southern parapet railing of the eastern bridge over the circulatory carriageway of the A1 at junction 23 and ending in the vicinity of junction 16 at marker post 102/8;
(c)the carriageways of the clockwise slip roads;
(d)the carriageways of the anti-clockwise slip roads;
(e)the linking carriageways; and
(f)the carriageways of the spur road.