SIGNS AND LINES

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Across
  1. 2. Use these to communicate, or see at night
  2. 8. You may do this at some red lights
  3. 9. An east-west Interstate has an ___ number
  4. 11. These signs draw attention to detours
  5. 15. These signs remind drivers of the law
  6. 16. A white "H" on a blue background
  7. 17. This sign is triangular, & it's white & red
Down
  1. 1. These signs draw your attention to danger
  2. 3. These signs provide destination information
  3. 4. The line is ____: you can make a lane change
  4. 5. You should not use this near blind people
  5. 6. An octagonal sign means this
  6. 7. A crossbuck tells you to watch out for this
  7. 10. This sign is a yellow pentagon
  8. 12. A north-south Interstate has an ___ number
  9. 13. On a traffic light, the top light's color
  10. 14. If the line is _____, then don't cross it!