MUTCD 11th Edition (2023)
Section 2C.48 — Lanes Merge Signs (W9-4 and W4-8)
Manual on Uniform Traffic Control Devices, Section 2C.48. Standards, guidance, options and support statements, with figures and cross-references.
Section 2C.48 Lanes Merge Signs (W9-4 and W4-8) Support: 01 The LANES MERGE (W9-4) and Single-Lane Transition (W4-8) signs (see Figure 2C-11 ) are used to warn of a merge of two lanes to one in the same direction of travel with a merging maneuver required for each lane (see Sheet 5 of Figure 2C- 13). This type of merge is for a geometric condition where both approach lanes merge into a single lane, not where one lane merges into the other. Section 6H.08 contains information about the use of the late merge sign. Guidance: 02 The Single-Lane Transition (W4-8) sign should be located at the…
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