Research on Decision Method of Non-point Target Escape Route in Chemical Gas Leakage

This paper aims to minimize the damage in the evacuation of people and plan the optimal escape route for evacuating people to safe shelters. In addition, this paper uses a large spatial Gaussian plume diffusion model considering the surface roughness to calculate the gas concentration field suitable for the leakage of toxic gases in the chemical industry park. At the same time, this paper considers gas concentration values and road lengths on each road, and proposes a calculation method for quantifying human body gas poisoning damage.