No person shall turn a motor vehicle being driven on public grounds from a direct course unless and until such person shall have exercised due care to ascertain that such movement can be made with reasonable safety to other users of public grounds and then only after giving a clearly audible signal by sounding the horn if any pedestrian may be affected by such movement or after giving an appropriate signal in the event any traffic may be affected by such movement. A signal of intention to turn right or left shall be given in sufficient time in advance of the movement indicated to give ample warning to other drivers of motor vehicles who would be affected by such movement.
(Ord. 124-1957. Passed 5-6-57.)