Answer: trafficcop

AnswerCrossword Clue
TRAFFICCOPWaver at a crossroads
TRAFFICCOPSpeeder's nemesis
TRAFFICCOPHighway man.
TRAFFICCOPPersonage of the street scene.
TRAFFICCOPOne who may wave to you
TRAFFICCOPGridlock helper
TRAFFICCOPStoplight stand-in