The Chongqing-Hunan double-track expressway has a total mileage of 280 kilometers, with an average bridge-tunnel ratio of 80%. It is jointly invested and constructed by Chongqing Expressway Group and a number of central enterprises and local state-owned enterprises, with a total investment of about 64 billion yuan. The section opened to traffic this time is from Banan to Wulong ...

https://www.mot.gov.cn/jiaotongyaowen/202501/t20250