15.—(1) No person shall spit on any part of the railway premises.
(2) No person shall —
(a)
place or throw any litter; or
(b)
place or throw any chewing gum,
upon any part of the railway premises, or into or on any fittings, equipment or property upon the railway premises, whether belonging to the Authority or its licensee or placed therein with the approval of the Authority or its licensee, except into receptacles expressly provided for that purpose.
(3) No person shall soil any part of the railway premises, or any fittings, equipment or property upon the railway premises, whether belonging to the Authority or its licensee or placed therein with the approval of the Authority or its licensee.