The wold traffic congestion report was published by TomTom, a global leader in navigation and mapping. Chinese cities in the top-30 are Taipei (11th), Chongqing (12th), Tianjin (14th), Beijing (15th), Guangzhou (17th), Chengdu (19th), Shanghai (24th), Shijiazhuang (25th), Fuzhou (28th), Shenyang (29th) and Hangzhou (30th).
The TomTom Traffic Index measures travel times during the whole day and during peak periods and compares these with measured travel times during non-congested periods, which it calls free flow conditions.
Here is TomTom's top 30:
No 1: Istanbul, Turkey |
No 2: Mexico City, Mexico |