Mode of construction and operation of tramway
22.—(1) The authorised tramway shall be operated by electricity or, in an emergency or for the purposes of maintenance, by diesel power or other means.
(2) The authorised tramway shall be constructed on a nominal gauge of 1,435 millimetres.
(3) Subject to paragraph (4) below, the authorised street tramways shall be so constructed and maintained as to ensure that the uppermost surface of the rails is level with the surrounding surfaces of the street in which they are laid.
(4) In the case of any length of authorised street tramway which is constructed as described in section 7(4) of the 1993 Act as applied by article 5(3) above or which is situated clear of the carriageway, the Executive may, with the consent of the street authority (which consent is not to be unreasonably withheld), construct and maintain the tramway in such a manner that the uppermost surface of the rails is not level with the surrounding surfaces of the street in which they are laid.