Whenever traffic is controlled by traffic control signals exhibiting the words "Go", "Caution," or "Stop" or exhibiting different colored lights successively the following colors only shall be used and said terms and lights shall indicate as follows:
(A) Green alone or "Go":
1. Vehicular traffic facing the signal may proceed straight through or turn right or left unless a sign at such place prohibits either such turn.
2. But vehicular traffic shall yield the right of way to other vehicles and to pedestrians lawfully within the intersection at the same time such signal is exhibited.
3. Pedestrians facing the signal may proceed, across the roadway within any marked or unmarked crosswalk.
(B) Yellow or "Caution" when showing following the green or "Go" Signal:
1. Vehicular traffic facing the signal shall stop before entering the nearest crosswalk at the intersection, but if such stop can not be made in safety, a vehicle may be driven cautiously through the intersection.
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.
(C) Red alone or "Stop":
1. 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 except that where warranted the Department of this Municipality on highways under their respective jurisdiction and control, may permit vehicles to make a right turn under rules and regulations to be established by the Department or this Municipality, as the case may be.
2. No pedestrian facing such signal may cautiously enter the roadway unless he can do so safely and without interfering with any vehicular traffic.
(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 not interfere with other traffic or endanger pedestrians lawfully within a crosswalk.
2. No pedestrian facing such signal shall enter the roadway unless he can do so safely and without interfering with any vehicular traffic.