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Whenever traffic is regulated or controlled exclusively by a traffic-control sign or signs exhibiting the words “Go,” “Caution,” or “Stop,” or exhibiting different colored lights for purposes of traffic control, the following colors only shall be used, and these terms and lights shall indicate and be obeyed as follows:
(A) Green alone or “Go”: Vehicular traffic facing the signal may proceed straight through or turn right or left unless a sign at such place prohibits either such turn. However, vehicular traffic shall yield the right-of-way to other vehicles and to pedestrians lawfully within the intersection at the time such signal is exhibited.
(B) Steady yellow alone or “Caution” when shown following the green or “Go” signal: Vehicular traffic facing a steady yellow signal is thereby warned that the related green movement is being terminated or that a red indication will be exhibited immediately thereafter when vehicular traffic shall not enter the intersection. Vehicular traffic facing a steady yellow signal may enter and clear the intersection.
(C) Red alone or double red or “Stop”: Vehicular traffic facing the signal shall stop before entering the nearest crosswalk at an intersection or at such other point as may be indicated by a clearly visible line, and shall remain standing until green or “Go” is shown alone.
(D) Flashing red alone: Vehicular traffic facing the signal shall stop before entering the nearest crosswalk at an intersection or at such other point as may be indicated by a clearly visible line, and shall not again proceed until it can do so without danger.
(E) Flashing amber alone: Vehicular traffic facing the signal shall reduce its speed and proceed cautiously across the intersection controlled by such signal.
(F) “Yield Right-of-Way”: Vehicular traffic facing the “Yield Right-of-Way” sign shall bear the primary responsibility of safely entering the primary intersecting or merging right-of-way. All traffic facing the sign shall yield the right-of-way to all vehicles and pedestrians within such primary intersecting or merging right-of-way. No vehicle facing a “Yield Right-of-Way” sign shall enter the merging or intersecting right-of-way at a speed in excess of 15 miles per hour, except that this speed limit shall not apply to vehicles entering an expressway.
(G) Lane lights: When lane lights are installed over any street for the purpose of controlling the direction of flow of traffic, vehicular traffic shall move only in traffic lanes over which green arrows appear. However, when flashing amber lights appear above a lane all left turns shall be made from that lane. Where red arrows appear above such lanes, vehicles shall not move against them. If flashing amber lights show above a lane, that lane shall be used only for passing and for left turns unless a sign at such place prohibits such turn.
(`91 Code, § 70.15) Penalty, see § 70.99
Traffic-control signals, see KRS 189.338