If the vehicle is moving straight ahead, the driver moves slowly and parallel with the curb until the vehicle is in the center of the intersection, constantly checking the vehicular and pedestrian traffic situation both ahead and to the rear. If making a right turn, he checks to the rear, alongside, and straight ahead, and angles the truck at about a 30 degree angle toward the center of the street until the front end of the truck is about 10 feet from the curb. He begins the turning movement when the front wheels are past thecurbline or objects which must be cleared. He turns the steering wheel evenly and checks with vehicles or other objects on the left. He gradually straightens out the truck.
Most experts recommend the latter.
When turning and changing lanes, be especially careful to check and make sure no motorists are traveling in blind spots. In a backing truck, the driver should use all mirrors and a reliable person to observe for other traffic and pedestrians. The above diagram illustrates the proper maneuver for backing into a designated space which is required when making certain types of deliveries. The above diagram illustrates the proper procedure for maneuvering a vehicle into an alley on a narrow street and a stop so that the rear of the vehicle is in a squared position against a platform. The above diagram illustrates the proper procedure for maneuvering a vehicle in a straight line forward and backward in a limited area and how to properly judge side, front and rear clearance.