The design as shown in figure 5-9 is not only more economical but also emphasises the change in direction at the junction. With this type of layout it is important that the ahead destination block is not too close to the bottom of the sign. It is better for this block to be positioned higher than any other blocks on the sign.
(b) "London (A4)" is a separate block and the appropriate vertical space to the "Springwell" block is 4sw (patch with tiles below). However, had the place name in the "London" block been longer, so that the left hand edge of the patch was horizontally 6sw or more to the right of "Springwell", it would have been possible to have reduced the block spacing to 2sw (tiles with tiles below) in accordance with para 3.27.
5.25 The layout of the route symbols should reflect the actual road layout at the junction. However, in many situations it will be appropriate to simplify the design. For example, where the side arm is, in reality, 94° to the vertical it is better to show this as 90° on the sign. Complicated junctions should be indicated on the sign in a manner which can be easily understood by the road user.
MAJOR-MINOR PRIORITY JUNCTIONS ON DUAL CARRIAGEWAY ROADS
5.26 Figure 5-10 shows various designs for route symbols indicating crossroads and staggered junctions on dual carriageways. One half of the staggered junction symbol can be used to indicate a single turning either to the left or to the right.
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