Second, the pointing hand is raised at the wrist so that its palm is toward the person to be stopped and the palm is held in this position until the person is observed to stop. To stop traffic from both directions on a two-way street the procedure is then repeated for traffic coming from the other direction while continuing to maintain the raised arm and palm toward the traffic previously stopped. Second, with palm up, the pointing arm is swung from the elbow only, through a vertical semi-circle until the hand is adjacent to the chin. If necessary, this gesture is repeated until traffic begins to move. To start traffic from both directions on a two-way street, the procedure is then repeated for traffic coming from the other direction.
Drivers usually effect their turns without the necessity of being directed by the officer.
The officer s right side and arm should be toward the oncoming traffic, and the left side and arm should be toward the left turning driver. After stopping oncoming traffic by using the right arm and hand, the right hand should remain in the halt gesture, then the extended left arm and index finger and officer s gaze is directed toward the driver who intends to effect a left turn. When the left turning driver s attention has been gained, the extended left arm and index finger are swung to point in the direction the driver intends to go. One long blast. Occasionally a driver or pedestrian will not understand the officer s directions.