6.35 Signs should be erected within 15m of the start and end of the prohibition. Where there is a change in the prohibition but no change in the road marking (i.e. seasonal double yellow line to a twelve month double yellow line, or a single yellow line where the time period changes), signs for each prohibition should be mounted either side by side or one above the other at the changeover point. Each sign should include an arrow indicating the direction in which the prohibition extends. The double or single yellow line must have a transverse mark at the changeover point (see Chapter 5, para 20.3). If the loading prohibition does not change, the arrows should be applied to the waiting prohibition part of the sign. In this case, an alternative to providing two signs to diagram 640 would be to provide two signs to diagram 639 and one sign to diagram 638.1 (without an arrow). Figures 6-3 to 6-9 give examples of signing changeover points. Where there is more than one sign, they may be mounted on a grey backing board; this need not extend beyond the top and bottom of the assembly, or beyond the sides of the widest sign.
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Figure 6-3 Change from day-time prohibition of waiting to both no waiting and no loading at any time
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Figure 6-4 Change from seasonal no waiting at any time to all year round no waiting at any time
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Figure 6-5 Change from peak-hour prohibition of waiting to day-time prohibition of waiting with no change to peak-hour prohibition of loading
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Figure 6-6 Change from peak-hour prohibition of waiting and loading to day-time prohibition of waiting and loading.
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