You are driving a long vehicle that makes wide turns from a two-lane street. You want to turn left; when should you begin turning?

You are driving a long vehicle that makes wide turns from a two-lane street. You want to turn left; when should you begin turning?

• A. Before entering the intersection
• B. At the intersection centerline
• C. Halfway through the intersection
• D. After you have fully cleared the intersection

Answer: (C)

The key idea here is coordinating a wide turn for a long vehicle. Because a long vehicle has a longer wheelbase, the front wheels start the turn while the rear wheels still have to follow a longer path. If you turn too early, the rear of the vehicle can swing into the opposite lane or hit the curb; if you wait too long, you won’t have enough room to complete the turn safely in your lane. Turning when you’re halfway through the intersection gives you the space to begin the arc inside the intersection. The front tires start to turn and guide the vehicle onto the new path, while the rear continues through, allowing the vehicle to straighten into the new road as you exit. This timing helps keep the vehicle in its own lane and avoids obstructing traffic or clipping corners. Starting before entering the intersection risks crossing into the opposing lane or hitting the curb. Beginning exactly at the centerline would not provide the necessary arc clearance for a long vehicle. Waiting until you’ve fully cleared the intersection defeats the purpose of the wide turn and can create congestion or unsafe positioning.

The key idea here is coordinating a wide turn for a long vehicle. Because a long vehicle has a longer wheelbase, the front wheels start the turn while the rear wheels still have to follow a longer path. If you turn too early, the rear of the vehicle can swing into the opposite lane or hit the curb; if you wait too long, you won’t have enough room to complete the turn safely in your lane.

Turning when you’re halfway through the intersection gives you the space to begin the arc inside the intersection. The front tires start to turn and guide the vehicle onto the new path, while the rear continues through, allowing the vehicle to straighten into the new road as you exit. This timing helps keep the vehicle in its own lane and avoids obstructing traffic or clipping corners.

Starting before entering the intersection risks crossing into the opposing lane or hitting the curb. Beginning exactly at the centerline would not provide the necessary arc clearance for a long vehicle. Waiting until you’ve fully cleared the intersection defeats the purpose of the wide turn and can create congestion or unsafe positioning.