Traffic-control signals exhibiting the words "GO", "Caution", or "Stop", or exhibiting different colored lights successively one at a time, or with arrows, shall show the following colors only and shall apply to drivers of vehicles and pedestrians as follows:
(1) Green alone, or "GO".
(a) Vehicular traffic facing the signal may proceed straight through or turn right or left unless a sign at such place prohibits 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 cross walk at the time such signal is exhibited.
(b) Pedestrians facing the signal may proceed across the roadway within any marked or unmarked cross walk.
(2) Steady yellow alone:
(a) Vehicular traffic facing the signal is thereby warned that the red or "Stop" signal will be exhibited immediately thereafter and such vehicular traffic shall not enter or be crossing the intersection when the red or "Stop" signal is exhibited.
(b) Pedestrians facing such signal shall not enter the roadway unless authorized so to do by a pedestrian "Walk" signal.
(3) Steady red alone, or "Stop".
(a) Vehicular traffic facing the signal shall stop before entering cross walk 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.
(b) Pedestrians facing such signal shall not enter the roadway unless authorized so to do by a pedestrian "Walk" signal.
(4) Steady red with green arrow:
(a) 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 cross walk and to other traffic lawfully using the intersection.
(b) Pedestrians facing such signal shall not enter the roadway unless authorized so to do by a pedestrian "Walk" signal.
(5) In the event an official traffic control signal is erected and maintained at a place other than an intersection, the provisions of this section 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 the stop shall be made a vehicle length short of the signal.