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重庆师范大学硕士学位论文 英文摘要
Research on Multi-objective Optimization Model of
Two-Echelon Vehicle Routing Problem
ABSTRACT
In recent years, the new retail industry of the Internet of Things has been changing
with each passing day, and smart logistics has developed rapidly. The people’s demand
for time-efficiency and higher service levels of express delivery has made logistics compa-
nies no longer only choose low-cost and high-efficiency distribution routes. Urban green
sustainable development is taken into consideration. The problem of logistics distribution
vehicle path planning has entered a new critical period. Two-echelon logistics distribu-
tion is the most basic and most common mode in the current urban logistics distribution
system. Therefore, the two-echelon logistics distribution system in the new environment
In-depth research on the problem of vehicle routing can not only meet the service de-
mands of consumers, but also have important practical significance for improving urban
traffic conditions and promoting energy saving and emission reduction. This article main-
ly focuses on economic benefits, environmental pollution and noise nuisance. Research
the two-echelon vehicle routing problem based on customer classification and time win-
dow restriction, establish a mixed integer nonlinear programming model with the goal of
minimizing economic costs, environmental impact and social interference, based on im-
proved C-W saving algorithm and large-scale neighborhood search algorithm solve and
test through customer examples of different distribution types.
The first chapter mainly introduces the background and significance of the two-
echelon vehicle routing problem, analyzes and summarizes the domestic and foreign re-
search status and development process of the two-echelon vehicle routing problem, the
two-echelon vehicle routing multi-objective optimization model and its solution algorithm.
The second chapter provides an overview of the two-echelon vehicle routing problem
and the theory of multi-objective optimization. First, the relevant definition and classifi-
cation of the two-echelon vehicle routing problem are explained from the basic elements
and components of the two-echelon logistics distribution; Secondly, based on classification,
researched and sorted out the two-echelon vehicle routing optimization model consider-
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