Clues:

​Across

2. An important component of a two-way road
3. A place where roads meet
7. A controller of the roads, who also checks for breakage of rules
9. A place for pedestrians to cross
Down
1. A safety device used in cars
4. A structure built to span physical obstacles
5. A big public road
6. This light means stop
8. A place for pedestrians to walk
10. A route on land between two places