Bilevel vehicle routing optimization method with fuzzy random time window

The invention relates to a vehicle routing optimization method with a fuzzy random time window. In order to achieve vehicle routing optimization with the fuzzy random time window in the engineering transportation, a bilevel vehicle routing optimization method with the fuzzy random time window is provided. The method comprises the following steps of establishing a lower level model of a bilevel vehicle routing optimization problem model with the time window, and establishing a corresponding upper layer model according to the lower level model; obtaining a vehicle routing optimization problem overall model with the fuzzy random time window through the bilevel planning technology according to the upper layer model and the lower layer model, wherein the overall model is formed by organically combining the upper layer model and the lower layer model; solving the overall model by utilizing the particle swarm algorithm. The improved particle swarm algorithm technology is applied to the bilevel vehicle routing optimization method with the fuzzy random time window, and an optimal solution of a bilevel vehicle routing with the fuzzy random time window can be quickly and effectively obtained. The bilevel vehicle routing optimization method with the fuzzy random time window is applied to the field of engineering management.