A person who directs traffic is commonly referred to as a traffic officer or traffic controller. In some contexts, they may also be called a crossing guard, especially if they assist pedestrians at intersections. Their primary role is to ensure the safe and efficient movement of vehicles and pedestrians.
Air Traffic Controller
Traffic guard
The Pilot.
A Traffic Guard, "Flagman", or "Flagger" is a person who directs traffic through a construction site or other temporary traffic control zone pass ...
That would be the conductor.
taxi control
He is called an "air traffic controller".
Director or artistic director depending on their duties.
NAVIGATOR
Because it directs traffic with lights?
traffic trigger
air traffic control