15.—(1) The undertaker may, for the purposes of the construction or maintenance of the authorised project—
(a)form and lay out means of access, or improve existing means of access, in the locations specified in columns (1) and (2) of Schedule 5 (access to works) at or about the points marked “X” on the works plan,
(b)with the approval of the relevant planning authority, such approval not to be unreasonably withheld, after consultation with the highway authority, form and lay out such other means of access or improve existing means of access, at such locations within the Order limits as the undertaker reasonably requires for the purposes of the authorised project, and
(c)with the approval of the relevant planning authority, such approval not to be unreasonably withheld, after consultation with the highway authority, strengthen, improve, repair or reconstruct any street under the powers conferred by this Order.
(2) If a relevant planning authority which receives an application for approval under paragraph (1)(b) or (c) fails to notify the undertaker of its decision before the end of the period of 28 days beginning with the date on which the application was made, it will be deemed to have granted approval.