Applying the Bi-Level Programming Model Based on Time Satisfaction to Optimize Transportation Scheduling of Prefabricated Components

The logistics distribution of prefabricated components is an important issue facing the realization of “building industrialization” in China. However, the current transportation scheduling of prefabricated components is mostly based on the experience and subjective consciousness of dispatchers, and lacks effective scientific and systematic analysis. In order to solve this problem, this paper proposes a bi-level programming model based on time satisfaction. In the upper model, combined with the transportation characteristics of prefabricated components, a hybrid time satisfaction function is proposed. The total transportation cost and time satisfaction penalty cost are the minimum optimization targets to determine the OD matrix of the transportation network. In the lower model, the actual road network traffic conditions are fully considered, and the user equilibrium (UE) is used to distribute the prefabricated component transportation network traffic. In order to solve the model, a heuristic algorithm combining genetic algorithm and Partan Frank-Wolfe algorithm is designed and verified by case.