MUTCD 11th Edition (2023)
Section 4B.04 — Basis of Installation of Traffic Control Signals
Manual on Uniform Traffic Control Devices, Section 4B.04. Standards, guidance, options and support statements, with figures and cross-references.
Section 4B.04 Basis of Installation of Traffic Control Signals Support: 01 A careful analysis of traffic operations, pedestrian and bicyclist needs, and other factors at a large number of signalized and unsignalized locations, coupled with engineering judgment, has provided a series of signal warrants, described in Chapter 4C, that define the minimum conditions under which installing traffic control signals might be justified. Guidance: 02 The design (including the phasing, operation, and timing) of new traffic control signals should be based on an engineering study of roadway, traffic, and…
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