2.  In this Order —

(a) “the deposited plan” means the plan numbered HA 10/2E/281, marked “The Trunk Road A1081 (Bell Roundabout — London Colney Roundabout, Hertfordshire) (Detrunking) Order 1988” signed by authority of the Secretary of State and deposited at the Department of Transport, Romney House, 43 Marsham Street, London SW1P 3PY;

(b) “principal road” as a classification for a highway, means that the highway is a principal road for the purposes of enactments and instruments which refer to highways classified as principal roads, and is also classified for the purpose of every other enactment and instrument which refers to highways classified by the Secretary of State; and

(c) “the Trunk Road” means the London Colney Bypass (A1081).