15.—(1) The undertaker may, for the purposes of the authorised development, enter on so much of any of the streets as are within the Order limits and may—
(a)break up or open the street, or any sewer, drain or tunnel under it;
(b)tunnel or bore under the street or carry out works to strengthen or repair the carriageway;
(c)remove or use all earth and materials in or under the street;
(d)place and keep apparatus in or under the street;
(e)maintain, renew or alter apparatus in the street or change its position;
(f)demolish, remove, replace and relocate any street furniture;
(g)execute any works to provide or improve sight lines;
(h)execute and maintain any works to provide hard and soft landscaping;
(i)carry out re-lining and placement of road markings;
(j)remove and install temporary and permanent signage; and
(k)execute any works required for, or incidental to, any works referred to in paragraphs (a) to (j).
(2) The authority given by paragraph (1) is a statutory right for the purposes of sections 48(3) (streets, street works and undertakers) and 51(1) (prohibition of unauthorised street works) of the 1991 Act.