§ 70.24  TRAFFIC-CONTROL SIGNAL LEGEND.
   (A)   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 such terms and light shall indicate and 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 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.
         (b)   Pedestrians facing the signal may proceed across the roadway within any marked or unmarked crosswalk.
      (2)   Yellow alone or “caution” when shown following the green or “go” signal.
         (a)   Vehicular traffic facing the signal shall stop before entering the nearest crosswalk at the intersection, but if such stop cannot be made in safety, a vehicle may be driven cautiously through the intersection.
         (b)   The provisions of division (A)(2)(a) of this section shall not be construed as a license to a driver of a motor vehicle approaching an intersection at an unlawful rate of speed to proceed through the intersection.  Any driver of a motor vehicle driving such vehicle at an unlawful rate of speed at the time of his approach to an intersection shall forfeit all rights to enter and proceed into and across such intersection under the “caution” signal as provided.
         (c)   No pedestrian facing such signal shall enter the roadway until the green or “go” is shown alone unless authorized so to do by a pedes-trian “walk” signal.
      (3)   Red alone or “Stop.”
         (a)   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; provided, that if a sign is not erected prohibiting turns on red lights, the vehicles may turn right on red lights after coming to a complete stop. Streets on which right turns on red are not allowed are set out in Ch. 75, Traffic Schedules.
         (b)   No pedestrian facing such signal shall enter the roadway until the green or “go” is shown alone unless authorized so to do by a pedes-trian “walk” signal.
      (4)   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 crosswalk and to other traffic lawfully using the intersection.
         (b)   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.
   (B)   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 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.
('84 Code, § 16-16)