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Study On The Multiobjective Optimization Methods For The Logistics Distribution Route Choice Problems

Posted on:2007-05-23Degree:DoctorType:Dissertation
Country:ChinaCandidate:S L HanFull Text:PDF
GTID:1102360212965850Subject:Carrier Engineering
Abstract/Summary:PDF Full Text Request
The distribution is a very important part of the modern logistics system. It is also an integrated product of the modern marking economic regimes, the modern scientific technologies and modern logistics management ideas. The reasonability of distribution route greatly impacts the speed, the cost and the efficiency of the distribution process. It is very important to make the distribution route decisions in a scientific and reasonable way. With the aim to decrease the cost in distribution process under given service levels, this paper studies the multiobjective distribution rout choice problems with multiple customers (multiple depots) and time windows.1. This paper discuss the types of logistics distribution and their developments trends in real applications, the status of transportation in the distribution system, the impact factors and the operation process of the transportation sequentially. The structures and classifications of the logistics distribution route selection problems are analyzed, and the principles of the distribution route optimization are proposed.2. The distribution routes between a logistic center and its customers, and the routes between each pairs of customers (depots) are the foundations to get best distribution routes with multiple distribution customers (depots). The multiobjective distribution route choice problem between two depots have a notorious fame of NP-hard, as the scale of efficient paths set increases exponentially with the size of the problem. This problem is studied in the following two aspects:(1) With the fact that we need to consider the transportation time, the transportation cost and other objectives simultaneously in real applications, the multiobjective distribution route choice problem model with a single type of objectives is analyzed. The objectives of the problem are aggregated based on the fuzzy compromise programming techniques,and an extended label correcting method is proposed to solve the problem...
Keywords/Search Tags:Logistics distribution route, multiobjective optimization methods, fuzzy programming, extended label correcting method, time window, demand attributes, fuzzy clustering, two-stage heuristic method
PDF Full Text Request
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