Road Markings, Signs, and Signals

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Across
  1. 3. The road marking indicating you cannot pass
  2. 6. The sign indicating construction ahead
  3. 8. The sign indicating the off ramp of a highway
  4. 9. The sign indicating traffic goes only one direction
  5. 12. The sign marking a circular intersection with no stops
  6. 13. The sign often at intersections to halt the vehicle
Down
  1. 1. The sign indicating slowing down due to incoming traffic
  2. 2. The traffic light color that means one must begin to slow for a stop
  3. 4. The road marking indicating you can pass
  4. 5. The traffic light color that means one can go
  5. 7. The meaning behind a flashing yellow light
  6. 10. The traffic light color that means one must stop
  7. 11. the sign indicating a depression or elevation in the road