MUTCD 11th Edition (2023)
Section 6H.31 — Double Reverse Curve Signs (W24-1 Series)
Manual on Uniform Traffic Control Devices, Section 6H.31. Standards, guidance, options and support statements, with figures and cross-references.
Section 6H.31 Double Reverse Curve Signs (W24-1 Series) Option: 01 The Double Reverse Curve (W24-1, W24-1a, or W24-1b) sign (see Figure 6H-1) may be used where the tangent distance between two reverse curves is less than 600 feet, thus making it difficult for a second Reverse Curve (W1-4 series) sign to be placed between the curves. If the design speed of the curves is 30 mph or less, Double Reverse Turn signs may be used. Standard: 02 If a Double Reverse Curve (or Turn) sign is used, the direction of the double reverse curve (or turn) shall be appropriately illustrated. Except as provided in…
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