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Research On The Construction Of City Vegetable Logistics Distribution Network In H City

Posted on:2019-10-18Degree:MasterType:Thesis
Country:ChinaCandidate:H GuoFull Text:PDF
GTID:2439330575950810Subject:Logistics engineering
Abstract/Summary:PDF Full Text Request
With the continuous urbanization and increased urban population,the demand for fresh vegetables is also increasing.The "vegetable basket" of the residents is related to the livelihood of the people,so governments at all levels paying more and more attention on it.In order to promote the circulation of fresh vegetables to urban areas,a number of agricultural products distribution enterprises have been fousnded in H city,which serves as a capital city.However,the distribution levels of the various enterprises are different.High distribution autonomy and randomness of the distribution lead to higher costs and weak timeliness.Therefore,how to build a vegetable distribution network to integrate distribution resources,improve time satisfaction of distribution and reduce distribution costs in urban area is question that H City needs to what H City needs to consider.This paper includes five parts.The first part describes the research background,agricultural products logistics and the relevant literatures,and then explains the significance,research ideas,technical routes and innovations of the parper.The second part is correlative theories and methods which provide theoretical and methodological support for the following research.The third part is the basic situation summary of H City,which describes the status quo of vegetable distribution and the problems of vegetable distribution in H City.In the fourth part,the paper uses GIS software to carry out the primary selection of distribution center firstly,and then selects the distribution center which is based on the gray comprehensive evaluation,and finally determines the number of candidate distribution center in H city.The fifth part builds a complete vegetable distribution network in H City by building a vegetable logistics and distribution network Genetic algorithm model,which could achieve a multi-objective of the lowest logistics and distribution costs,and the most time-consuming customer satisfaction.The innovation point of this parper is the innovation of research object.The research of distribution network is more related to the logistics and distribution enterprises,but there are few studies on specific cities.This parper to a certain extent,enriches the content of this research direction.Secondly,in the research method,this parper studies a number of marbets only through two siting can select relatively objective distribution center.So,GIS is used for site selection and the secondary site selection uses AHP,that can better reflect the existing problems.Morver,this paper breaks the original method of selecting the distribution center and then optimizing the distribution route.Based on the traditional research,the author studies the distribution location and transportation route as a whole,and achieves the overall optimal distribution network which is under the establishment of multi-objective model,that is,delivery costs minimum and the customer's satisfaction with the greatest time.
Keywords/Search Tags:Delivery center, Network construction, Time windows, Gray comprehensive evaluation, Genetic algorithm
PDF Full Text Request
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