22.—(1) This regulation applies where a National Park authority has made a temporary order.
(2) The authority must, before the order comes into force, display a notice stating the effect of the order in a prominent position at each end of the length of road to which the order relates.
(3) If the effect of the order is to require vehicles or persons, or any class of vehicles or persons, to divert from the road—
(a)the authority must also display such a notice at all the points at which such diversion is required; and
(b)the notice must also state, or include a map showing, the alternative routes available.
(4) Each such notice must be displayed throughout the period during which the order is in force.
(5) The National Park authority must take all reasonable steps during that period to ensure that the notices remain displayed and in a legible condition, or are promptly replaced as often as necessary.