Wuxi Huishan tunnel is a part of the fast inner ring road of Wuxi, starting from Qingshan East Road in the South and Huiqian road in the north. Wuxi is the first fast track through the mountains. The left tunnel is 1576 meters long and the right tunnel is 1555 meters long. The whole tunnel is separated by two tunnels, and each tunnel has three lanes in one direction. Huishan tunnel, Fengxiang Road, Jianghai Road, Qingqi bridge and Jincheng Road after rapid transformation form a closed fast inner ring, which will be relatively separated from ground traffic. There are basically no traffic lights on the whole line. It is a free "expressway" in the city.