China: most traffic jam prone cities 2023

In the third quarter of 2023, the commuting peak congestion index of Chongqing was 1.89, which indicated that a trip that would had taken one hour in light traffic required almost two hours to complete on average. Chongqing's hilly topography and high population density put a strain on the cities traffic infrastructure.

Rush hour congestion index of Chinese cities in the third quarter of 2023

Characteristic	Rush hour congestion index
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Release date

December 2023

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Region

China

Survey time period

Q3 2023

Supplementary notes

*The rush hour congestion index is calculated based on the comparison of travel times during peak hours to travel times during non-congested periods. Peak hours refer to 7:00-9:00 am and 17:00-19:00 pm on work days. The peak hours in Urumqi and Lhasa had been adjusted according to their time zones.
The monitored regions include the downtown areas of 100 cities and the downtown area is defined by public governmental data, geographical data from Baidu map and population activities data.

Figures have been rounded.

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