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On steep mountain grades, there are __________ that can stop runaway vehicles safely without injuring drivers or passengers.

Correct answer

  • weaving zones
  • deceleration ramps
  • escape ramps

Explanation

On many steep mountain grades, there are escape ramps that can stop runaway vehicles safely without injuring drivers or passengers. An escape ramp uses a long bed of loose, soft material (pea gravel) to slow a runaway vehicle, sometimes in combination with an upgrade.

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