Travel times in Mexico City are 38 percent longer during heavy traffic times, making it the most traffic jam-prone large city in North America. While this figure refers to additional average travel time throughout the day, on average, weekday evening peak times make travelling by car almost 57 percent longer. In the United States, New York overtook Los Angeles as the most congested city in 2021.
Effects of traffic
Although working from home became the new normal amid the pandemic, workers in the U.S. can spend, on average, some 24 to 30 minutes commuting to work, depending on the region. This can be longer in large cities, adding a significant time to people’s working days without increasing their income. Increased traffic also leads to a higher number of fatal crashes, all else being equal.
Transportation is also one of the leading contributors to carbon dioxide emissions, and traffic jams contribute to this by extending the time that cars are running. Local air pollution is also a concern, particularly in Mexico where almost 50,000 people died from air pollution exposure in 2019.
North America's most traffic jam prone large cities as of 2021
Longer travel time relative to uncongested traffic
TomTom used GPS data to compare travel times during the whole day and during peak periods to travel times during non-congested periods. Includes cities with a population of 800,000 or over. The figures are based on 2021 TomTom traffic data.
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TomTom. (February 23, 2022). North America's most traffic jam prone large cities as of 2021 [Graph]. In Statista. Retrieved August 13, 2022, from https://www.statista.com/statistics/235786/most-traffic-jam-prone-cities-in-north-america/
TomTom. "North America's most traffic jam prone large cities as of 2021." Chart. February 23, 2022. Statista. Accessed August 13, 2022. https://www.statista.com/statistics/235786/most-traffic-jam-prone-cities-in-north-america/
TomTom. (2022). North America's most traffic jam prone large cities as of 2021. Statista. Statista Inc.. Accessed: August 13, 2022. https://www.statista.com/statistics/235786/most-traffic-jam-prone-cities-in-north-america/
TomTom. "North America's Most Traffic Jam Prone Large Cities as of 2021." Statista, Statista Inc., 23 Feb 2022, https://www.statista.com/statistics/235786/most-traffic-jam-prone-cities-in-north-america/
TomTom, North America's most traffic jam prone large cities as of 2021 Statista, https://www.statista.com/statistics/235786/most-traffic-jam-prone-cities-in-north-america/ (last visited August 13, 2022)