(a) No person may turn a vehicle from a direct course or move right or left upon a roadway unless and until such movement can be made with reasonable safety and then only after giving an appropriate signal in the manner provided in this section in the event any other vehicle may be affected by such movement.
(b) Any signal of intention to turn right or left shall be given continuously during the last 100 feet traveled by a vehicle before turning.
(c) No person may stop or suddenly decrease the speed of a vehicle on a highway without first giving an appropriate signal in the manner provided in this section to the driver of any vehicle immediately to the rear when there is opportunity to give such signal.
(d) Signals shall be given either by means of the hand and arm or by signal lamp or mechanical signal device, except that when the body of a vehicle, or a load on any vehicle projects 32 inches or more to the left of the center of the steering wheel, or under any other condition when a hand and arm signal would not be visible both to the front and rear of such vehicle, then such vehicle must be equipped with a signal lamp or device and signals must be given by such lamp or device.
(e) All signals herein required to be given by hand and arm shall be given from the left side of a vehicle in the following manner:
(1) for a left turn, hand and arm extended horizontally beyond the side of the vehicle;
(2) for a right turn, hand and arm extended upward beyond the side of the vehicle;
(3) for a stop or sudden decrease of speed, hand and arm extended downward beyond the side of the vehicle.History: 1972, PL 12-65 § 1.