How Road Barriers Stopped Killing Drivers: Crossword

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Across
  1. 3. Mass times velocity important in crash physics
  2. 5. Heavy rigid material used in permanent barriers
  3. 7. Common material used in guardrails
  4. 9. Designed to safely withstand vehicle collisions
  5. 11. Speed in a given direction
  6. 12. Movement of a barrier during a crash
  7. 14. The end treatment of a guardrail
Down
  1. 1. Barrier function that sends vehicles away from danger
  2. 2. The force of one object hitting another
  3. 4. What safety barriers are designed to absorb
  4. 6. Roadside safety device that absorbs impact
  5. 8. Keeps a vehicle from breaching the barrier
  6. 10. A type of flexible roadside barrier
  7. 13. Force pulling materials tight like in cable barriers
  8. 15. Type of barrier that moves very little on impact