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Master's Dissertation
DOI
https://doi.org/10.11606/D.18.2018.tde-26012018-183754
Document
Author
Full name
Cely Martins dos Santos
Institute/School/College
Knowledge Area
Date of Defense
Published
São Carlos, 1999
Supervisor
Committee
Aguiar, Edson Martins de (President)
Brasileiro, Luzenira Alves
Silva, Antônio Nélson Rodrigues da
Title in Portuguese
A viabilização de softwares comerciais na roteirização de veículos de serviços de entregas, visando a geração de respostas rápidas e eficientes
Keywords in Portuguese
Distribuição física
Fluxos em rede
Logística
Roteamento de veículos
SIG
Abstract in Portuguese
Este trabalho foi motivado pela necessidade de otimização nos serviços de entregas urbanas combinados com o alto custo de implantação e customização da maioria dos pacotes disponíveis comercialmente, que muitas empresas se defrontam, na expectativa de obtenção de respostas rápidas e eficientes, numa base diária. Geralmente a utilização destes software requerem grandes investimentos de tempo e recursos. Os custos operacionais do transporte de cargas têm experimentado um aumento expressivo devido a fatores que, de uma forma ou de outra, impedem o fluxo eficiente dos veículos na rede, tomando evidente a necessidade de ferramentas flexíveis e efetivas. Vários estudos encontrados na literatura revelaram que fatores como restrições de circulação e velocidades nos arcos têm contribuído para aumentar distâncias de percursos e a frota de veículos. Geralmente, estas rotas são planejadas de forma simplificada, utilizando um fator de correção, que fornece uma solução aproximada. Um SIG foi objeto de estudo na operação de entregas urbanas, de forma a atingir os objetivos deste trabalho. O estudo de caso abordou os serviços de entregas de bebidas na cidade de São Carlos, onde foi aplicada a heurística de economias de Clarke & Wright implementadas no software TransCAD 3.2. Foram feitas diversas simulações, comparando os resultados das distâncias em rede com os valores das distâncias estimadas, como também com as distâncias percorridas pela empresa distribuidora.
Title in English
The feasibility of commercial software for vehicles routing of delivery services in order to obtain fast and efficient answers
Keywords in English
GIS
Logistic
Network flows
Physical distribution
Vehicles routing
Abstract in English
This research was motivated by the necessity of optimization of urban delivery services and the high cost of implementation and customization of most routing packages commercially available. Moreover, the companies expect to obtain fast and efficient answers on a daily base. The use of some routing software generally requires significant investments of time and other resources. The operational costs of freight transport have had a remarkable increase due to factors which somehow restraint the efficient flow of the vehicles in a network, leading to the need of flexible and effective tools. Several studies in the literature have revealed that factors such as restrictions of circulation and speed on network contribute to increase the travel distances and the fleet size. Generally, these routes are planned in a simplified way, using a correction factor to get an approximated solution. This research has considered the use of Geographical Information Systems as a tool to achieve better results for routing delivery services. The case study was the delivery service of beverages in the city of São Carlos. The Clarke & Wright's heuristic of economies was irnplemented in the TransCAD 3.2 software. Several simulations were carried out, comparing the results of route length, considering network and estimated distances, as well as the real one traveled by the delivery company's vehicles.
 
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Publishing Date
2018-01-29
 
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