Section 21462 Of Article 3. Offenses Relating To Traffic Devices From California Vehicle Code >> Division 11. >> Chapter 2. >> Article 3.

. The driver of any vehicle, the person in charge of any animal, any pedestrian, and the motorman of any streetcar shall obey the instructions of any official traffic signal applicable to him and placed as provided by law, unless otherwise directed by a police or traffic officer or when it is necessary for the purpose of avoiding a collision or in case of other emergency, subject to the exemptions granted by Section 21055.