Affected by the accident, the traffic police in the jurisdiction temporarily implemented traffic control on all vehicles at the entrance of the S38 Wangxia Expressway Wanggertang and Xiahe Toll Stations, and passing vehicles needed to detour along the S312 line, and the estimated recovery time was to be determined.
![The principle of "interval speed measurement" on high speed is very simple, but many car owners are not clear[fig]](data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACwAAAAAAQABAAACAkQBADs=)