CDL Combination Vehicles TestDriving Combination Vehicles SafelyEasy

You are driving a combination vehicle on a highway and notice that a small car has merged in front of you, leaving very little space. What is the most appropriate action to take?

  1. AGently apply your brakes to increase your following distance from the car.
  2. BMaintain your speed and assume the car will eventually create more space.
  3. CChange lanes immediately to get away from the close vehicle.
  4. DFlash your headlights and honk your horn to signal the car to move over.
Show answer & explanation

Correct answer: A. Gently apply your brakes to increase your following distance from the car.

When a vehicle merges too closely, the safest response for a combination vehicle is to increase the following distance. Combination vehicles require much longer stopping distances, so creating more space is essential to prevent a rear-end collision if the car ahead stops suddenly.

Why the other options are wrong

  • B. Maintaining speed is dangerous as it does not account for the reduced following distance and increased stopping time of a combination vehicle.
  • C. Changing lanes immediately might be unsafe if the adjacent lane is not clear, or if done abruptly, could create another hazard.
  • D. Aggressive actions like flashing lights and honking can escalate the situation and don't create the necessary safe following distance.

Managing Close Merges

When another vehicle merges too closely in front of a combination vehicle, gently reduce speed to re-establish a safe following distance.

  • Combination vehicles need longer stopping distances.
  • Aggressive reactions are unsafe.
  • Prioritize creating space.

Memory trick: Close Car, Calmly Create Clearance.

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