By Alanna Petroff and Charles Riley @CNNMoney March 21, 2016: 10:03 PM ET
Chongqing
7 of 12
Chongqing is the first of four Chinese cities on TomTom's list.
Located in southwestern China, residents of the city are forced to endure 191 extra hours in traffic each year if they commute at peak times.
First published March 21, 2016: 10:03 PM ET
Source: TomTom Traffic Index 2016 The TomTom index is based on data from vehicles driving across each city's road network. The evening rush hour ranking is based on time added to a congestion-free journey of 30 minutes.
