In 2016, one third of Chinese cities were affected by traffic jams. A traffic analysis report of China's major cities has been jointly released by Amap, the Scientific Research Institute of the Ministry of Transport, Tsinghua-Daimler Center for Sustainable Transportation Research, Ali Cloud, Beijing Tsinghua Tongheng Urban Planning & Design Institute and DT Finance. It covered more than 100 cities across the country.

Compared with the data from the Q3 report last year, Jinan surpassed Harbin to become the city with the worst traffic, with a rush hour delay index of 2.173. Harbin and Beijing ranked the second and third, with delay indexes of 2.116 and 2.061 respectively.

The report indicates a surging number of cars in second and third-tier cities. Guiyang in Guizhou Province and Kunming in Yunnan Province entered the top 10 for the first time. Shanghai dropped out of the top 10 list.

The following are the top 10 Chinese cities with the worst jam in 2016.

 Guangzhou, Guangdong Province

Guangzhou, Guangdong Province [China Economic Net]

Rush hour delay index: 1.859

Rush hour car speed (km/h): 23.047

Per-capita time costs of traffic jam: 9,376 yuan (US$1,365.11)