Safety unmanned vehicle group construction method based on risk assessment utility

The invention discloses a safety unmanned vehicle group construction method based on risk assessment effectiveness, which relates to the field of unmanned driving and is characterized by comprising the following steps: 1, risk assessment effectiveness; 2, related definition of unmanned vehicle group members; 3, an unmanned vehicle group forming method based on risk assessment effectiveness; 4, vehicle group maintenance; and 5, a vehicle group safety evaluation index. Aiming at the problem that an existing safety quantification method lacks unmanned vehicle group safety measurement indexes and the like, a risk assessment utility index is given to measure the safety of a vehicle group, an unmanned vehicle group forming algorithm is given on the basis, and roles of vehicles are divided while the vehicle group is formed, so that the load of a head node is shared. For the driving environment of the unmanned vehicles, the invention provides a safety method capable of guaranteeing the intelligence of the movement be