Progress on the cogwheel principle is easy and simple
 It is applied in cases of congestion on roads, highways, acceleration fields, or three-sided intersections.

The cogwheel method is applied when the road on the right and on the left is crowded

This is to facilitate the safe and orderly passage of all vehicles, and I will provide you with a picture explaining how this road is implemented in a simple way.

Notice in the picture how the cars drive in order and with mutual respect, a car from the right and a car from the left
 Thus, everyone enters the road calmly and safely, and there is no traffic obstruction.
 
 This method is applied on the highway when there is congestion and the acceleration field on the right is full of cars
 Then a car passes from the acceleration field, a car from the highway, and so on until everyone enters the road.
 
 It is also applied at three-sided intersections, such as the one in the picture above, and the entrances to main roads are
 Similar to small acceleration fields, but it is not like that. Rather, it is a road that is on the right and enters the main road.