48.—(1) In this regulation “the crossing” in relation to a sign means the equestrian crossing in relation to which the sign is placed.
(2) A sign for conveying to equestrian traffic the warning and information specified in paragraph (4) shall—
(a)be of the size, colour and type shown in diagram 4003.2; or
(b)consist of either a single unit of the size, colour and type shown in diagram 4003.4 or of two units, one comprising the upper and the other the lower part of that unit placed close together,
and shall comply with the requirements of paragraph (3).
(3) The requirements are that the sign is so designed and constructed that—
(a)the red symbol in the sign (“the red signal”) can be internally illuminated by a steady light;
(b)the green symbol in the sign (“the green signal”) can be internally illuminated by a steady light;
(c)when one signal is illuminated the other is not;
(d)the green signal is illuminated only when there is at the same time conveyed to vehicular traffic a prohibition against entering the crossing and the prohibition is indicated by—
(i)the light signals prescribed by regulation 33 (whether or not varied in accordance with regulation 34) or 41; or
(ii)those light signals and the sign shown in diagram 606, 612, 613 or 616;
(e)in the case of the sign shown in diagram 4003.4, a push button or other switching device is included which, whilst the red signal is illuminated, in some way indicates to equestrians whether it has been activated; and
(f)in the case of the sign shown in diagram 4003.2, the signal heads are ES compliant.
(4) The red signal, whilst it is illuminated, shall indicate the period during which, in the interests of safety, equestrian traffic should not use the crossing and the green signal, whilst it is illuminated, shall indicate the time during which such traffic may use the crossing.
(5) Where the sign shown in diagram 4003.4 is provided at a crossing, any additional device which—
(a)is of the size, colour and type of only the part of that sign which shows the red and green signals or of only the part which includes the push button and the legend above it;
(b)complies with the requirements of paragraph (3) so far as they are relevant to it; and
(c)is provided to supplement the indications given by the sign shown in diagram 4003.4,
shall give the same indication as the relevant part of the sign shown in that diagram.
(6) A push button device giving instructions to equestrians on how to cause the green signal in the sign shown in diagram 4003.2 to become illuminated and explaining the significance of the red and green signals shall be of the size, colour and type shown in diagram 4003.3.
(7) The sign shown in diagram 4003.3 shall, whilst the word “WAIT” is illuminated, convey the same indication as the red signal.