The majority of sections on the Shanghai-Shaanxi Expressway adhere to the standard expressway speed limit of below 120 km/h. However, some special sections in Anhui have a speed limit of 80 km/h. The reason for the 80 km/h speed limit on the Anhui section of the Shanghai-Shaanxi Expressway is that the Hefei-Liuye Expressway (Hefei-Dagudian section) is currently undergoing renovation and expansion. Therefore, local traffic police authorities have implemented speed control on the Hefei-Liuye Expressway, with a maximum speed limit of 80 km/h, until the completion of the renovation and expansion project by the end of 2022. More relevant information is as follows: 1. Shanghai-Shaanxi Expressway: The Shanghai-Shaanxi Expressway starts at the Wuzhou Avenue-Shuchongsu Interchange in Pudong New District, Shanghai, and runs from west to east through Shanghai, Nantong, Taizhou, Yangzhou, Nanjing, Chuzhou, Hefei, Lu'an, Xinyang, Nanyang, Shangluo, and Xi'an, ending at the Tianwang Interchange in Baqiao District, Xi'an. It spans a total length of 1,490 kilometers and was fully completed in 2012. The expressway features 4/6/8 lanes in both directions, with a design speed of 80-120 km/h. 2. Hefei-Liuye Expressway: The Hefei-Liuye Expressway is a segment of the Shanghai-Shaanxi Expressway (from K643+157 to K745+819, from the Hefei West Hub to the Dagudian Hub Interchange), with a total length of 102.7 kilometers. It is equipped with 9 fixed speed monitoring devices and 6 mobile speed monitoring devices to capture violations such as speeding. Notably, the 1.8-kilometer section of the G40 Jianghuai Canal Bridge on the Yangtze River Diversion Project has implemented bidirectional traffic on a temporary route, with a speed limit of 60 km/h.
