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Typical layouts

The typical layouts shown below should be used when locating signs for treating curves.

Figure 3‑2: Horizontal curve - chevron board

(a) Typical site layout for W20-1 signs

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(b) 4 bar chevron: W20-1 (R4)

 


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Figure 3-3: Horizontal curve - with chevron curve indicators


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Figure 3-3 notes:

  1. At least two W20-2 chevron curve indicators should always be visible to an approaching driver.
  2. W20-2 chevron curve indicators should be installed at a uniform lateral clearance from, and a consistent height above, the edge of the adjacent traffic lane.
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