MUTCD 11th Edition (2023)
Section 6B.04 — Advance Warning Area
Manual on Uniform Traffic Control Devices, Section 6B.04. Standards, guidance, options and support statements, with figures and cross-references.
Section 6B.04 Advance Warning Area Support: 01 The advance warning area is the section of highway where road users are informed about the upcoming transition and activity areas or incident area. Option: 02 The advance warning area may vary from a single sign or high-intensity rotating, flashing, oscillating, or strobe lights on a vehicle to a series of signs in advance of the TTC zone activity area.Guidance: 03 Typical distances for placement of advance warning signs on freeways and expressways should be longer because drivers are conditioned to uninterrupted flow. Therefore, the advance…
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