Traffic Signs Manual Chapter 4 Warning Signs

14 
2 
JUNCTIONS
2.1  General
2.1.1.  The sign to diagram 501 (S2‑6‑1, see 
Figure 2-1
) should be used where the clear 
visibility distance (see 
1.9.3
 and 
1.9.4
) to the STOP or GIVE WAY sign is less than the distance 
given in 
Table 2-1
. The sign may also be accompanied by the word SLOW (diagram 1024) 
marked on the carriageway. Where the junction is with a dual carriageway road, the “Dual 
carriageway” plate remains below the STOP or GIVE WAY plate (see also 
5.6
). Where there is a 
gap in the central reservation and a right turn is permitted, this should reduce the risk of drivers 
turning into the wrong carriageway. See Chapter 3 for further guidance on the STOP and GIVE 
WAY signs, and Chapter 5 for road markings at junctions.
501  Junction ahead controlled
        by a GIVE WAY sign
501  Junction ahead controlled
        by a STOP sign
Diagram 501 supplementary plates may not be used alone. The distance plate must always
be used and may be varied. The “Dual carriageway” supplementary plate may be omitted.
Figure 2-1 Diagram 501 (S2‑6‑1) Junction ahead controlled by GIVE WAY / STOP sign
Table 2-1 Advance warning sign criteria, sizes and siting

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