MUTCD 11th Edition (2023)
Section 6K.04 — Tubular Markers
Manual on Uniform Traffic Control Devices, Section 6K.04. Standards, guidance, options and support statements, with figures and cross-references.
Section 6K.04 Tubular Markers Standard: 01 Tubular markers (see Figure 6K-1 ) shall be predominantly orange for TTC zone applications and shall be not less than 18 inches high and 2 inches wide facing road users. They shall be made of a material that can be struck without causing damage to the impacting vehicle. 02 Tubular markers shall be a minimum of 28 inches in height when they are used on freeways and other high-speed highways, on all highways during nighttime, or whenever more conspicuous guidance is needed. 03 For nighttime use, tubular markers shall be retroreflectorized.…
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