When turning left on a multi-lane street or highway, which lane should you start from?

When making a left turn on a multi-lane street or highway, the most appropriate lane to start from is the left lane. This is because the left lane is often designated for vehicles preparing to turn left, ensuring that the turn is executed safely and efficiently. By starting in the left lane, drivers position themselves correctly in relation to the direction they are turning, reducing the risk of collisions with vehicles traveling straight or those in adjacent lanes.

Other lanes, such as the right or center, are typically used for through traffic and might require additional maneuvers that could be hazardous during the turn. The turning lane, when available, specifically serves to facilitate left or right turns, but it is primarily designed for cars that are already slowing down or stopping, rather than for setting up a left turn from moving traffic. Therefore, initiating the turn from the left lane is the safest and most appropriate method.