The new highways which the Secretary of State proposes to construct–
(a) along the routes described in Schedules 1, 2 and 3 to this Order (the highways along each of these routes being in this Order referred to as “the main new trunk road”); and
(b) along the routes described in Schedules 1, 2 and 3 to this Order which connect the trunk road and the main new trunk roads with other highways at the places stated in those Schedules (the highways along these routes being in this Order referred to as “the trunk road slip roads”),
shall become trunk roads as from the date when this Order comes into force.