
Thailand leads with the highest average hours spent in peak congestion (61 hours) last year, ahead of Colombia and Indonesia (47 hours) as well as Russia and the United States (42 hours).
The Global Traffic Scorecard survey, conducted by US-based transportation analytics firm Inrix, also showed Los Angeles topping the list of the world's most gridlocked cities. Drivers there spent 104 hours last year in traffic jams during peak congestion periods.
Five of the top 10 traffic-congested cities in the world were also in the United States.