12.—(1) No stage of the authorised development is to commence until written details in relation to that stage of—
(a)the design, layout and management of—
(i)any new permanent or temporary means of access from the Order land to a public highway to be used by vehicular traffic; and
(ii)any alteration to an existing means of access from the Order land to a public highway used by vehicular traffic; and
(b)the taking of any necessary traffic management and control measures,
have been submitted to and approved by the relevant planning authority.
(2) The construction of accesses or alteration of the street or the taking of traffic management and control measures must be carried out in accordance with the details approved under paragraph (1).