MUTCD 11th Edition (2023)
Section 4F.20 — Priority Control of Traffic Control Signals
Manual on Uniform Traffic Control Devices, Section 4F.20. Standards, guidance, options and support statements, with figures and cross-references.
Section 4F.20 Priority Control of Traffic Control Signals Support: 01 Priority control (see definition in Section 1C.02) is typically given to certain non-emergency vehicles such as light-rail transit vehicles operating in a mixed-use alignment and buses. 02 Examples of priority control include the following: A. The displaying of early or extended green signal indications at an intersection to assist public transit vehicles improve operations, and B. Special phasing to assist public transit vehicles in entering the travel stream ahead of other waiting traffic. Standard: 03 During priority…
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