(i) there is no junction carrying vehicular traffic to or from it; and
(ii) the width of the carriageway is temporarily restricted so as to carry only one line of traffic;
(c) where the signals are placed at a level crossing when work in relation to that crossing is being carried out;
(d) where the signals are placed on a road which is—
(i) adjacent to the temporary site of road, building or engineering works; and
(ii) is used for the movement of vehicles, materials, plant or equipment within the site of the works.
(3) Nothing in this direction is to be taken to limit or affect the powers of a constable or the chief officer of police under section 67(1) of the 1984 Act (placing of temporary traffic signs on roads in extraordinary circumstances).
Placing of signals and other signs at crossings
54. The Schedule to these Directions shall have effect with regard to the placing of—
(a) vehicular light signals;
(b) pedestrian light signals; and
(c) other signs, at signal-controlled crossing facilities where vehicular traffic is stopped only for the purpose of enabling pedestrians, cyclists or equestrians to cross the carriageway and not for the purpose of regulating the priority of vehicular traffic at a junction.
Placing of various light signals
55.—(1) The light signals shown in diagram 4004 may be placed only in combination with the sign shown in diagram 545 together with the plate shown in diagram 546, 547.1 or 547.7.
(2) The light signals shown in diagram 4005 may be placed on or near a road only when the sign shown in diagram 548 in conjunction with the plate shown in diagram 548.1 is placed in advance of those signals.
(3) The light signals shown in diagram 4006 may be placed only in conjunction with the light signals shown in diagram 3014.
(4) The sign shown in diagram 4003 may be placed only in conjunction with the light signals shown in diagram 4002.1.
(5) The sign shown in diagram 4003.3 may be placed only in conjunction with the light signals shown in diagram 4003.2.
(6) The sign shown in diagram 4003.6 may be placed only in conjunction with the light signals shown in diagram 4003.5.
(7) The light signals shown in diagram 4002.1 or 4003.1 may be placed only in conjunction with the light signals prescribed by regulation 33(1) or (2).
(8) The light signals shown in diagram 4003.2 or 4003.4 may be placed only in conjunction with the light signals prescribed by regulation 33(1).
(9) The light signals shown in diagram 4003.5 or 4003.7 may be placed only in conjunction with the light signals prescribed by regulation 33(1).
(10) The light signal shown in diagram 776 may be placed only at or near a level crossing and the legend shall be displayed to road traffic in black letters on a red background which is internally illuminated by means of electricity only when a railway vehicle or tramcar has just passed over the level crossing and another is approaching.
(11) The light signals of the kinds prescribed by regulation 33(1), 34 or 39 may be placed on or near a road to face traffic proceeding in a particular direction if and only if—
(a) at least two identical sets of signals are placed so as to face traffic proceeding in that direction; and
(b) at least one of those sets of signals is a set of primary signals.
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