METHOD AND DEVICE FOR PROVIDING ROAD CONGESTION REASON

Embodiments of this application provide a method for providing a road congestion cause. The method is used in a server and includes: determining a congestion point; determining a plurality of vehicles located in a road section of a first predetermined length centered on the congestion point; sending an indication message to the plurality of vehicles, where the indication message indicates the plurality of vehicles to photograph the congestion point by using a vehicle-mounted camera and upload photographed data to the server; receiving the photographed data from the plurality of vehicles; and determining the road congestion cause based on the photographed data. The method in embodiments of this application can accurately determine the congestion cause in real time, and improve road traffic efficiency.