Whenever traffic is controlled by traffic control signals exhibiting the words "Go", "Caution" or "Stop" or exhibiting different colored lights successively one at a time or with arrows, the following colors only shall be used and said terms and light shall indicate and apply to drivers of vehicles and pedestrians as follows:
A. Green alone or "Go":
1. Vehicular traffic facing the signal, except when prohibited herein, may proceed straight through or turn right or left unless a sign at such place prohibits either such turn. But vehicular traffic, including vehicles turning right or left shall yield the right of way to other vehicles and to pedestrians lawfully within the intersection or an adjacent crosswalk at the time such signal is exhibited.
2. Pedestrians facing the signal may proceed across the roadway within any marked or unmarked crosswalk.
B. Yellow alone or "Caution" when following the green or "Go" signal:
1. Vehicular traffic facing the signal shall stop before entering the crosswalk on the near side of the intersection or, if none, then before entering the intersection and shall remain standing until green or "Go" is shown alone.
2. Pedestrians facing such signal are thereby advised that there is insufficient time to cross the roadway and any pedestrian then starting to cross shall yield the right of way to all vehicles.
3. Pedestrians facing such signal shall not enter the roadway until the green or "Go" is shown alone unless authorized to do so by a pedestrian "Walk" signal.
C. Red alone or "Stop":
1. Vehicular traffic facing the signal shall stop before entering the crosswalk on the near side of the intersection or, if none, then before entering the intersection and shall remain standing until green or "Go" is shown alone.
2. No pedestrian facing such signal shall enter the roadway until the green or "Go" is shown alone unless authorized so to do by a pedestrian "Walk" signal.
D. Red with green arrow:
1. Vehicular traffic facing such signal may cautiously enter the intersection only to make the movement indicated by such arrow but shall yield the right of way to pedestrians lawfully within a crosswalk and to other traffic lawfully using the intersection.
2. No pedestrian facing such signal shall enter the roadway until the green or "Go" is shown alone unless authorized so to do by a pedestrian "Walk" signal.
E. In the event an official traffic control signal is erected and maintained at a place other than an intersection, the provisions of this chapter shall be applicable except as to those provisions which by their nature can have no application. Any stop required shall be made at a sign or marking on the pavement indicating where the stop shall be made, but in the absence of any such sign or marking the stop shall be made at the signal. (1980 Code)