These are the world’s 20 most congested cities

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Traffic in Rio de Janeiro, Brazil. Mario Tama/Getty Images

  • The transportation data firm INRIX Research released in February its annual rankings of the most congested cities in the world.
  • Cities were ranked based on delays caused by congestion, adjusted for each city’s population.
  • Moscow was named the most congested city in the world for the second year in a row, and Europe had more cities in the top 20 than any other continent.

The transportation data firm INRIX Research released in February its annual rankings of the most congested cities in the world.

The company measured the amount of time lost per capita in 2018 due to the difference between traffic at the busiest and least busy commuting times each day. Cities were ranked based on delays caused by congestion, adjusted for each city’s population.

Moscow was named the most congested city in the world for the second year in a row, and Europe had more cities in the top-20 than any other continent.

These are the most congested cities in the world.


20. Toronto, Canada

Hours lost in congestion: 164


19. Washington, DC, United States

Hours lost in congestion: 155


18. Belo Horizonte, Brazil

Hours lost in congestion: 202


17. Melbourne, Australia

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Hours lost in congestion: 118


16. Paris, France

Hours lost in congestion: 237


15. Berlin, Germany

Hours lost in congestion: 154


14. Singapore, Singapore

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Hours lost in congestion: 105


13. Sydney, Australia

Hours lost in congestion: 138


12. Izmir, Turkey

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Hours lost in congestion: 154


11. Ankara, Turkey

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Hours lost in congestion: 128


10. Rome, Italy

Hours lost in congestion: 254


9. Saint Petersburg, Russia

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Hours lost in congestion: 200


8. Boston, United States

Hours lost in congestion: 164


7. Rio de Janeiro, Brazil

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Hours lost in congestion: 199


6. London, United Kingdom

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Hours lost in congestion: 227


5. Sao Paulo, Brazil

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Hours lost in congestion: 154


4. Mexico City, Mexico

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Hours lost in congestion: 218


3. Bogota, Colombia

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Hours lost in congestion: 272


2. Istanbul, Turkey

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Hours lost in congestion: 157


1. Moscow, Russia

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Hours lost in congestion: 210