A Risk Assessment Method of Logistics Drones on Ground

With the improvement of the intelligent transportation system and the expansion of UAV application scenarios, logistics UAVs came into being. Logistics drones are considered to an effective transportation means for the "last-mile" express delivery. However, falls caused by air collisions and self- failures may cause injuries to ground personnel and cause certain economic losses. This paper focuses on the logistics and transportation scenarios of drones, studies the number of deaths and economic losses caused by the falling of logistics drones, and uses the risk matrix to comprehensively evaluate the risks. The main contents include: analyzing the separation of aircraft and cargo after the collision of logistics drones in the air, modeling the number of deaths on the ground caused by logistics drones and cargo falling to the ground; classifying drones and cargo, and modeling economic losses, including direct economic losses caused by loss of drone and cargo value and costs by social service agencies indirect economic loss due to consumption; integrating the number of deaths and economic losses on the ground to establish a risk assessment matrix. The calculation example indicates that the number of deaths on the ground is between 3.74×10- 12 and 1.87×10- 7 per flight hour, which is in line with the equivalent safety level; the economic loss is between 6734.8 and 33619 yuan per accident, which is also within a reasonable range. The method provided in this paper can provide some reference and guiding significance for the ground risk assessment and control of logistics drones.