TRAFFIC SIGNALS YELLOW ARROW A red light is about to appear. Stop movement in the  indicated direction unless you are already within the  intersection or so close to the intersection that you cannot stop  safely. In that case, proceed through the intersection making  the indicated turn.  RED ARROW Do not make the movement indicated by the arrow. Stop  behind the crosswalk, stop line, or if none, before entering the  intersection. No turns are allowed until the arrow changes to  green or flashing yellow.  GREEN BALL Go if the intersection is clear. Make any legal maneuver not  specifically prohibited by a traffic control device. Yield to  intersection with the right-of-way, such as pedestrians  traveling across the roadway with the green light. Yield to  vehicles going straight through the intersection in the  opposite direction if you are making a left turn.  YELLOW BALL A red light is about to appear. Stop unless you are already  within the intersection, or so close to the intersection that you  cannot stop safely. If the light changes to yellow as you enter  the intersection, you may proceed with extreme caution.  RED BALL Stop behind the crosswalk, stop line, or if none, before  entering the intersection. Right turns are permitted only  after a full stop, when the turn can be made safely, and is not  restricted by a “No turn on red” sign. 