http://www.w3.org/ns/prov#value | - If we look just at CVC 21450(a), it states, ???Whenever traffic is controlled by official traffic control signals showing different colored lights, or colored lighted arrows, successively, one at a time, or in combination, only the colors green, yellow, and red shall be used, except for pedestrian control signals, and those lights shall indicate and apply to drivers of vehicles and pedestrians as
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