MUTCD 11th Edition (2023)
Section 2C.35 — Advance Traffic Control Signs (W3-1, W3-2, W3-3, and W3-4)
Manual on Uniform Traffic Control Devices, Section 2C.35. Standards, guidance, options and support statements, with figures and cross-references.
Section 2C.35 Advance Traffic Control Signs (W3-1, W3-2, W3-3, and W3-4) Standard: 01 The Stop Ahead (W3-1), Yield Ahead (W3-2), and Signal Ahead (W3-3) Advance Traffic Control signs (see Figure 2C-8) shall be installed on an approach to a primary traffic control device that is not visible for a sufficient distance to permit the road user to respond to the device (see Table 2C-3). The visibility criteria for a traffic control signal shall be based on having a continuous view of at least two signal faces for the distance specified in Table 4D-2. Guidance: 02 Where intermittent obstructions…
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