include an arrow as used on a stack type sign. Where blue characters are used on a white background (regulation 53(6)(c)), the Transport Heavy alphabet should be used. The Regulations allow for an x-height range of 40 mm minimum to 250 mm (350mm capital letter) maximum based on the Transport alphabet. The length of arrow prescribed by Regulation 53 is equivalent to an x-height range of 62.5 mm minimum to 250mm maximum, assuming that the arrow length is 16sw. The signs may incorporate any symbol prescribed by the Regulations. Signs prescribed by regulation 53 may be used for a maximum period of six months, except that the sign illustrated in figure 11-3 may be used for a period of up to two years. Signs which are to be retained for longer periods will require special authorisation (see direction 38(1)).
DISTANCES
14.3 Appendix G lists those directional signs where a distance may be expressed in the form "x yards", "x yds" or "X YARDS", the latter generally being used only on those signs that have capital letters throughout. The distance should normally be centred horizontally below the destination with a vertical gap, as shown in figure 14-1. It is recommended that only one destination is shown on this type of sign. However, figure 14-1 shows the correct vertical spacing where more than one destination is included.
14.4 Exceptionally, the distance may be placed alongside the destination as shown in figure 14-2. Unless shown otherwise on a working drawing, the distance shall always be to the right of the
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