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21LEVEL CROSSINGS

21.1 This section gives a brief description of the prescribed traffic signs used at level crossings and tramway crossings. For further guidance, reference should be made to the Office of Rail Regulation’s (ORR) publication "Railway Safety Publication 7, Level Crossings: A guide for managers, designers and operators" published on the ORR website. See also section 3 in Chapter 3.

May be used with diagram 572, 573 or 773

21.2 Diagram 770 is used on the approach to a railway level crossing which is equipped with gates or barriers. This sign is also used at a tramway crossing if barriers are provided. Diagram 771 is used in advance of open railway level crossings which have neither gates nor barriers. Diagram 772 is used in advance of open tramway crossings which have neither gates nor barriers. These signs should normally be sited at a distance from the crossing related to the 85th percentile speed of approaching vehicles, in accordance with Appendix A. See also paras 21.17 and 21.18 for guidance on the use of countdown markers and signing for queuing traffic.

May be used only in combination with diagram 529, 529.7, 558, 770, 777 or 772.
A distance, an arrow or both may be added

21.3 Diagram 773 should be used in advance of wig-wag signals to diagram 3014 at both railway and tramway level crossings. An arrow may be added to the sign pointing either to the left or to the right. An indication of distance may be added. The sign may be used only in combination with one of the warning signs described above, or with diagram 529, 529.1 or 558 where wig-wag signals are used at an opening bridge, a tunnel or an airfield (see paras 7.3, 7.4, 14.1 and 14.2).

May be used with diagram 602 when used with 778 or 778. 7, or with signals to diagram 3074

21.4 Diagram 774 is used to indicate the location of a level crossing which has no gate or barrier. The same sign is used regardless of the number of tracks and at tramway as well as railway crossings.

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