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Doctoral Thesis
DOI
https://doi.org/10.11606/T.3.2017.tde-24022017-080052
Document
Author
Full name
André Alarcon de Almeida Prado
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2016
Supervisor
Committee
Gualda, Nicolau Dionisio Fares (President)
Brinati, Marco Antonio
Cunha, Claudio Barbieri da
Lima Júnior, Orlando Fontes
Vallim Filho, Arnaldo Rabello de Aguiar
Title in Portuguese
Modelagem do problema de localização/roteirização para o transporte de carga fracionada.
Keywords in Portuguese
Logística
Modelos matemáticos
Redes de computadores (Projeto)
Roteirização
Transporte de Carga
Abstract in Portuguese
As localizações dos terminais e as rotas de entrega que partem desses terminais são decisões importantes que surgem na concepção de redes de transporte de carga fracionada. Nesses casos, dois problemas independentes precisam ser tratados: o problema da localização de instalações (LAP) e o problema da roteirização dos veículos (VRP). Este trabalho apresenta um modelo matemático para resolver o LAP e o VRP de forma integrada, ou seja, para a resolução do problema de Localização/Roteirização (Location Routing Problem - LRP). De acordo com a literatura, a abordagem integrada do LRP fornece melhores resultados do que a solução do LAP e do VRP separadamente. O modelo foi testado e aplicado em um caso real de Many-to-Many com Multiplos elos LRP, respeitou as restrições e o nível de serviço exigido e propiciou melhoria nos resultados para a empresa de transporte no qual foi aplicado. Os resultados do modelo também foram melhores do que os resultados apresentados por um software líder de mercado.
Title in English
Modelling the location routing problem for less than truck load transportation.
Keywords in English
Location routing problem
Logistics
LTL transport
Network design
Abstract in English
In the Less Than Truck Load (LTL) operations both the location of facilities and the routing of vehicles are important decisions for the optimal design of the related logistics network. Two interdependent problems arise: the Location Allocation Problem (LAP) and the Vehicle Routing Problem (VRP). This paper presents a mathematical model to solve the LAP and the VRP simultaneously on an integrated way, such as the so-called Location-Routing Problem (LRP). According to the literature the LRP integrated approach provides better results than considering the LAP and the VRP separately. The model was tested and applied to a real case of Many-to-Many with Multi-Echelons LTL Location-Routing Problem respecting the constraints and the required service level standard and provided better results for the company in which it was tested. The model results also were better than the results presented by market-leading software.
 
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Publishing Date
2017-02-24
 
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