Intersections and turns1 of 2
How far in advance must an Oklahoma driver continuously signal before turning, slowing down, or stopping?
The answer
Answer: B. Oklahoma law requires drivers to signal continuously for at least 100 feet or one-third of a city block before turning, slowing down, or stopping. Signaling well in advance alerts following and oncoming motorists of your intentions, giving them adequate time and distance to adjust speed and prevent rear-end collisions.
Source: OK Driver Manual — Chapter 6: Lane Usage and Maneuvers (p. 36)