Traffic b1

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Across
  1. 4. Road signal with colors
  2. 7. Long-distance bus
  3. 9. Carries many people
  4. 10. Area to wait for a train
  5. 11. Be too late for something
  6. 12. Part of a road
  7. 13. Many cars stuck
  8. 14. Big truck
  9. 17. Checks car speed
  10. 18. Fast main road
  11. 21. Place for trains
Down
  1. 1. Boat for transport
  2. 2. One-way ticket
  3. 3. Medium transport vehicle
  4. 5. Travel regularly to work
  5. 6. Get onto a plane, train, or ship
  6. 7. Road accident
  7. 8. Runs on rails
  8. 9. Place where buses stop
  9. 15. City rail vehicle
  10. 16. Ticket for going and coming back
  11. 19. Circular road
  12. 20. Train under the city