MUTCD 11th Edition (2023)
Section 4A.10 — Responsibility for Operation and Maintenance
Manual on Uniform Traffic Control Devices, Section 4A.10. Standards, guidance, options and support statements, with figures and cross-references.
Section 4A.10 Responsibility for Operation and Maintenance Guidance: 01 Prior to installing any highway traffic signal, the responsibility for the maintenance of the signal and all of the appurtenances, hardware, software, and the timing plan(s) should be clearly established by the responsible agency. 02 To this end the agency should: A. Keep every controller assembly in effective operation in accordance with its predetermined timing schedule, check the operation of the controller assembly frequently enough to verify that it is operating in accordance with the predetermined timing schedule,…
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