The traffic controller is the one who guides, controls, divides the flow,.. helps the traffic smooth and safe.
Answer 1 is incorrect because the operator A vehicle operator in traffic is a person subject to the instructions of a traffic controller. Pay attention to distinguish vehicle control and traffic control.
Being the driver of a vehicle participating in traffic.
The person assigned the task of guiding traffic at construction sites, at traffic jams, at ferry terminals, at road bridges and railways.