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Difficulty: HardSpace to the Sides

You are driving a commercial combination vehicle in the right lane of a four-lane urban roadway with parallel-parked cars along the curb. Another motorist is traveling alongside your trailer in your left blind spot at matching speed, and ahead the road enters an open bridge deck known for sudden crosswinds. Which defensive driving action best preserves your space cushion on both sides?

  1. A
    Steer toward the right lane boundary to provide extra clearance for the adjacent vehicle while maintaining current speed.
  2. Ease off the accelerator to encourage the adjacent vehicle to move ahead, then keep your vehicle centered within the lane.Answer
  3. C
    Accelerate firmly to overtake the adjacent vehicle and close the gap with traffic ahead before entering the bridge deck.
  4. D
    Apply firm service braking to come to a near stop in the travel lane until the adjacent vehicle has completely passed.

Answer

Ease off the accelerator to encourage the adjacent vehicle to move ahead, then keep your vehicle centered within the lane.
According to commercial driving space management principles, drivers should avoid traveling alongside other vehicles whenever possible because it creates entrapment. Easing off the throttle allows the adjacent vehicle to move ahead safely. Keeping the commercial vehicle centered in the lane maximizes the lateral cushion from curb hazards on the right and provides room to correct for crosswinds encountered on the bridge.

Step-by-Step Solution

1
Identify the primary lateral threats: parked vehicles on the right, an entrapping vehicle in the left blind spot, and impending crosswinds.
Recognize that driving side-by-side eliminates escape routes and amplifies crosswind vulnerability.
Commercial motor vehicles require continuous space cushions on both sides to prevent lateral collisions.
2
Select a speed adjustment strategy that breaks the pack without sacrificing following distance or creating rear hazards.
Ease off the throttle to smoothly drop back, prompting the adjacent vehicle to pull ahead.
Dropping back opens up lateral escape paths without aggressive braking or tailgating forward vehicles.
3
Maintain lane positioning directly in the center of the travel lane.
Provide equal buffer space between opening doors on the right and potential wind-induced sway or traffic on the left.
Commercial vehicles are wide; keeping the vehicle centered is the standard method to maintain safe clearance on both sides.

Key Concept

Maintaining lateral clearance, preventing side-by-side entrapment, and centering within the travel lane under multi-hazard conditions
Estimated Time:1m 30s
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Topics

Space to the Sides

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