New York the most congested city in the U.S., according to study
New York City traffic congestion
(March 4, 2023) New Yorkers experience the worst congestion in the country - traveling at an average of just 12 mph during rush hour, according to a study by Stress Free Car Rental. Motorists in Washington D.C. and San Francisco experience the second and third worst congestion across the country, with an average travel speed of 14 mph and 15 mph respectively, during peak times.