Where are the overhead speed cameras on the South Ring Road in Ningbo?

The overhead speed measuring cameras of Huancheng South Road in Ningbo are all installed above the east side of Zhongxing South Road. Because all the articles about the "electronic police" on the Ningbo viaduct reported in the newspaper are here! The high-definition exposure of many vehicles shows that electronic police equipment is enabled in the elevated section of Huancheng South Road (above the east side of Zhongxing South Road) to capture the illegal driving behavior of motor vehicles. Therefore, the overhead speed measuring camera of Ningbo Huancheng South Road is installed above the east side of Zhongxing South Road.