Practice question

What is the primary purpose of run-away lanes (runaway truck ramps) on steep mountain descents?

  1. To allow buses to park and rest
  2. To provide an emergency stopping area for vehicles that have lost their braking capacity
  3. To bypass slow-moving traffic on single-lane roads
  4. To perform brake inspections midway down the grade

Answer: B — To provide an emergency stopping area for vehicles that have lost their braking capacity

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