PLANEJAMENTO DAS ROTAS DOS LOTES DE VAGÕES EM PÁTIOS FERROVIÁRIOS VISANDO A REDUÇÃO DO TEMPO TOTAL DE ESTADIA

• Ano de defesa: 2021
• Autor(a) principal: Moreira, Diesther Campos
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal do Espírito Santo; BR; Mestrado em Engenharia Civil; Centro Tecnológico; UFES; Programa de Pós-Graduação em Engenharia Civil
• Palavras-chave em Português: Recursos; MRCPSP; pátios planos e vagões; subject.br-rjbn; Engenharia Civil
• Link de acesso: http://repositorio.ufes.br/handle/10/14659

Within the supply chain, transportation represents an important link for business competitiveness. The railway mode has stood out for its competitiveness in terms of transport cost and volume transported. Railway maneuvering yards play an important role within the railway mode, and maneuvering activities can take about 10% to 50% of the total transit time of trains on a railroad. In this way, the railway yards stand out for their complexity and are the biggest bottlenecks in the operation. The planning of activities in a railway yard with resource allocation aims to reduce the length of stay of the wagon lot and make the best use of resources. To plan the yard activities, a mathematical model inspired by the Multi-Mode Resource Constrained Project Scheduling Problem (MRCPSP) was developed. The MRCPSP acts in the sequencing of activities taking into account the restriction of resource allocation, in order to minimize the time between the beginning and the end of these activities. The model proved to be efficient in planning the activities of the yard, reducing the length of stay of the lots. It was also possible to identify bottlenecks and equipment and critical routes for maintenance.