MUTCD 11th Edition (2023)
Section 2B.42 — Slow Vehicle Turn-Out Signs (R4-12, R4-13, and R4-14)
Manual on Uniform Traffic Control Devices, Section 2B.42. Standards, guidance, options and support statements, with figures and cross-references.
Section 2B.42 Slow Vehicle Turn-Out Signs (R4-12, R4-13, and R4-14) Support: 01 On two-lane highways in areas where traffic volumes and/or vertical or horizontal curvature make passing difficult, turn-out areas are sometimes provided for the purpose of giving a group of faster vehicles an opportunity to pass a slow-moving vehicle. Option: 02 A SLOW VEHICLES WITH XX OR MORE FOLLOWING VEHICLES MUST USE TURN-OUT (R4-12) sign (see Figure 2B-10) may be installed in advance of a turn-out area to inform drivers who are driving so slow that they have accumulated a specific number of vehicles behind…
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