Traffic Index has released its annual report on global traffic congestion ranking for 2023 with Lagos State emerging as the city with the worst road traffic in the world.
Traffic Index is a web-based application built on top of the traffic layer within Google Maps.
The specified layer uses 4 colors to represent traffic congestion: green, orange, red, dark-red. The darker the color is, the more congestion can bee observed in that location.
Every 20 minutes, the web app saves an image for each tracked location, containing the traffic data reported by Google Maps.
After a couple of minutes, the images are analyzed, and the percentages of the 4 traffic colors are calculated.
The Traffic Index report, which contains only cities having at least five hundred thousand residents, revealed Lagos has the worst road traffic among all cities.
Riga, the capital and largest city of Latvia, came second on the list, followed by Tehran, the capital and largest city of Iran.
