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POL Government Elected Officials Auditor Griffin-Valade Charter, Code & Policies City Code & Charter Online Code & Charter Title 16 Vehicles and Tra Chapter 16.90 Definitions
16.90.380 Traffic Control Signal.

Any device, whether manually, electrically, or mechanically operated, by which traffic is directed. An electric traffic control signal is considered inoperative when none of the signal control indications are illuminated.