How can you tell if a driver is about to turn?

When observing a driver's behavior before a turn, the most reliable indicators are their turn signals and the way their vehicle is positioned in the lane. Turn signals are specifically designed to communicate a driver’s intention to turn, allowing other road users to anticipate the action and react appropriately. Additionally, a driver may adjust their position in the lane—moving closer to the edge or into a turn lane—which further signals their intention to turn.

While changes in speed may occur when a driver prepares to turn, it is not a guaranteed sign, as other factors (like traffic conditions or sudden stops) can also cause speed alterations. The use of the horn is not typically a reliable indicator of an imminent turn and is more commonly associated with alerting others to hazards rather than signaling a turning intention. Lastly, assuming there is no way to tell if a driver is about to turn is incorrect; observant drivers can and should look for these clear signals to promote safety on the road.