All signals required by this chapter shall be given from the left side of the vehicle in the following manner:
(A) Left turn: hand and arm extended horizontally;
(B) Right turn: hand and arm extended upward; or
(C) Stop or decrease of speed: hand and arm extended downward.
(1969 Code, § 16-286) (Ord. 1978-38, § 5.12, passed 1-26-1978) Penalty, see § 73.999