The operator of a vehicle shall, before stopping, turning, or changing the course of the vehicle, see that there is sufficient space to make the movement in safety. If any pedestrian might be affected by the movement, the operator shall give a clearly audible signal by sounding the horn, and whenever the operation of any other vehicle may be affected by the movement, he or she shall give some unmistakable signal to the driver of all other vehicles of his or her intention to make the movement.
(1972 Code, § 5-210) Penalty, see § 70.99