VERTICAL AND HORIZONTAL ROUTE ARMS 5.3 The appropriate spacings between different reduced to zero when the descender tile is at least types of legend (tiles or panels) and the vertical and 2.5sw horizontally from the nearest vertical face of horizontal route arms are shown in figure 5-2 The horizontal gaps measured to the vertical route arm are minimum values. The exact dimension will depend on the overall design of a particular sign.
5.4 Where a tiled legend with a descender is placed over a vertical route arm, the vertical gap can be the arm. This also applies where there is a patch or symbol on the same line as the tiled legend.
5.5 The minimum length of a vertical route arm is 12.5sw. This is to ensure the correct spacing between the forward destination and the horizontal route arm (see para 5.22).
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