(1)It shall be the duty of the authorised undertaker to secure that a warning notice meeting the requirements of subsection (2) is posted—
(a)at every stop, in such a position as to be readily visible to prospective passengers; and
(b)in every tram on which the penalty fare provisions have effect, in such a position as to be readily visible to passengers travelling on that tram.
(2)A warning notice posted by virtue of subsection (1) shall (however expressed) indicate the circumstances (as provided in section 45 (Penalty fares)) in which passengers may be liable to pay a penalty fare and shall state the amount of the penalty fare.