Construction work has formally begun on the Chongqing section of the Chengyu (Chengdu-Chongqing) expressway 'multi-line’, which will be the third expressway between the two cities.

At 251km in length, the multi-line will be the shortest expressway between Chengdu and Chongqing. It will have three lanes in each direction and a maximum speed of 100kph.