2. The Department designates and directs as follows—
(1) That the lengths of road described in Part I of the Schedule shall become special and trunk road and be part of the Belfast-Bangor Trunk Road T1.
(2) That the lengths of road described in Part II of the Schedule shall become special and trunk road and be part of the Belfast-Ballygawley-Londonderry-Land Frontier Trunk Road T3.
(3) That the lengths of road described in Part III of the Schedule shall become special and trunk road and be part of the Belfast-Coleraine-Londonderry Trunk Road T7.