MUTCD 11th Edition (2023)
Section 6G.07 — STAY IN LANE Signs (R4-9 and R4-9a)
Manual on Uniform Traffic Control Devices, Section 6G.07. Standards, guidance, options and support statements, with figures and cross-references.
Section 6G.07 STAY IN LANE Signs (R4-9 and R4-9a) Option: 01 A STAY IN LANE (R4-9) sign (see Figure 6G-1) may be used where a multi-lane shift has been incorporated as part of the TTC on a highway to direct road users around road work that occupies part of the roadway on a multi-lane highway. Guidance: 02 A STAY IN LANE TO MERGE POINT (R4-9a) sign (see Figure 6G-1 ) should be used during late merge operations (see Section 6N.19) to direct traffic to use all available lanes until the merge point is reached.
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