(1)An authorised undertaker may enter into agreements with the roads authority or the road works authority with respect to—
(a)the construction of any new road (including any structure carrying the road over or under a tramroad) under the powers conferred by this Act,
(b)the maintenance of the structure of any bridge or tunnel carrying a road over or under a tramroad,
(c)any stopping up, alteration or diversion of a road under the powers conferred by this Act, or
(d)the execution in the road of any of the works referred to in section 5(1) (Power to execute road works).
(2)Such an agreement may, without prejudice to the generality of subsection (1)—
(a)delegate to the roads authority or the road works authority any function under this Act which relates to the road in question, and
(b)contain such terms as to payment and otherwise as the parties consider appropriate.