Across
- 4. Busiest time
- 8. Basic city systems
- 9. Loud sounds
- 11. Money paid to live
- 12. Travel to work
- 13. Parks
- 15. Places to live
- 16. Paths for bikes
- 17. Main central area
- 19. Local area
- 20. Living expenses
Down
- 1. Walking-only street
- 2. Public services
- 3. Too many cars
- 5. Rubbish system
- 6. Buses and trains
- 7. Too full
- 10. Dirty air
- 14. Area outside centre
- 18. Being protected