The new highways which the Secretary of State proposes to construct —
(a) along the routes described in Schedule 1 to this Order (the highways along these routes being in this Order referred to as “the main new trunk road”); and
(b) along the routes described in Schedule 2 to this Order which connect the main new trunk road and the trunk road with the new side road at the places stated in that Schedule (the highways along these routes being in this Order referred to as “the slip roads”);
shall become trunk roads as from the date when this Order comes into force.