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Difficulty: MediumSpace for Turns

You are driving a 53-foot tractor-trailer and preparing to make a right turn onto a narrow cross street. To prevent collisions caused by off-tracking and stop other vehicles from attempting to pass on your right, which procedure should you follow?

  1. A
    Swing wide to the left before entering the intersection to give the trailer enough room to clear the curb.
  2. Keep the rear of your vehicle close to the right curb as you approach, then swing wide into the oncoming lane of the cross street only as you complete the turn.Answer
  3. C
    Move into the oncoming traffic lane 50 feet prior to the intersection so the trailer tracks in a straight line through the turn.
  4. D
    Cut sharply around the curb while maintaining higher speed to ensure momentum carries the trailer past the curb line.

Answer

Keep the rear of the vehicle close to the right curb upon approaching the intersection, then swing wide into the cross street only as the turn is completed (button-hook turn).
The correct method is the button-hook turn: keeping the rear of the vehicle close to the right curb during the approach prevents other vehicles from squeezing by on the right. If extra space is required due to off-tracking, the driver swings wide into the intersecting street only as the turn is completed, while monitoring mirrors and waiting for oncoming traffic to clear.

Step-by-Step Solution

1
Analyze the spatial risks associated with large commercial vehicle right turns.
Long combination vehicles experience significant rear-wheel off-tracking (rear wheels follow a shorter path than steer wheels), and trailing traffic often attempts to pass on the right if a gap appears.
Proper turn setup must address both trailer off-tracking clearance and blocking following vehicles from entering the right-side blind spot.
2
Evaluate the correct steering path (button-hook vs. jug-handle).
A button-hook turn keeps the rear close to the curb approaching the turn and swings wide into the target street only as necessary during completion, whereas a jug-handle swings wide before the turn.
Swinging wide before entering the turn creates a dangerous space on the right side that other motorists will misinterpret as an open lane or left turn.

Key Concept

Button-hook right turn execution and off-tracking management
Estimated Time:1m 0s
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Topics

Space for Turns

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