Cars and the Road: Compound Nouns

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Across
  1. 6. a set of red, yellow and green lights that control the movement of vehicles
  2. 7. the fastest you are legally allowed to drive on a road
Down
  1. 1. a document you need to be able to legally drive: driving _____
  2. 2. anger or violence between drivers
  3. 3. a place next to the motorway where you can buy petrol and food
  4. 4. cars are packed close together and can't move or can only move very slowly
  5. 5. a large traffic accident where multiple vehicles hit each other