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Question

Difficulty: MediumSpace to the Sides

On a multilane highway, commercial vehicle drivers are advised to avoid cruising directly alongside other vehicles in adjacent lanes. Which of the following best explains the danger of traveling side-by-side and the recommended action to maintain proper space to the sides?

  1. The adjacent vehicle could make a sudden lane change into your path or trap you from maneuvering around an upcoming hazard; you should drop back or safely move ahead to regain open space.Answer
  2. B
    Traveling beside another vehicle doubles the amount of off-tracking your trailer produces; you should steer partially onto the shoulder to widen the lane.
  3. C
    Cruising beside another vehicle reduces total stopping distance by half; you should match the other vehicle's speed precisely to lock in your position.
  4. D
    Adjacent vehicles eliminate the need for following distance; you should apply sudden, hard braking to let all neighboring traffic clear ahead.

Answer

Traveling alongside another vehicle risks entrapment and lateral collisions; drivers should drop back or safely pull ahead to regain an open space cushion.
Traveling alongside other vehicles creates two major hazards: the other driver may change lanes without seeing the commercial vehicle, or the commercial driver may become trapped without an escape route in an emergency. The proper defensive procedure is to drop back or pull ahead into an open pocket of traffic.

Step-by-Step Solution

1
Identify the primary risks of traveling directly alongside another vehicle on a multilane roadway.
Recognize that side-by-side driving removes an escape route (entrapment) and exposes the commercial vehicle to sideswipe collisions if the other driver drifts or abruptly changes lanes.
Commercial motor vehicles require substantial lateral clearance because of their width and limited maneuverability.
2
Determine the proper defensive driving action to restore lateral space cushions.
Select the strategy of either easing off the accelerator to drop back or safely accelerating to move ahead into clear space.
Adjusting speed to find an open pocket of traffic re-establishes an escape path on at least one side of the vehicle.

Key Concept

Managing space to the sides by avoiding traveling alongside other vehicles and preventing entrapment
Estimated Time:1m 0s
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Topics

Space to the Sides

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