20.5 New crossings
20.5.1. Diagram 790 (S14‑2‑67, see
Figure 20-24
) is used following alteration of the method
of control of a level crossing. In the case of a new installation, “CONTROL” should be omitted.
The sign must be removed within three months of the date of completion of the works (Schedule
14 General Directions item 39). Guidance on the appropriate sizes for triangular warning
signs and supplementary plates can be found in
Appendix A
and
Appendix B
respectively.
Diagrams 774, 775, 777, 783 to 786 and 788 are prescribed in several sizes, the smallest
being appropriate where approach speeds do not exceed 30 mph, and the largest where the
national speed limit applies. For intermediate approach speeds, sizes should be proportioned
accordingly, using the nearest prescribed size.
Figure 20-24 Diagram 790 (S14‑2‑67) New method of controlling
traffic at a railway or tramway level crossing ahead
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