Optimized Planning and Management of Domiciliary and Selective Solid Waste: Results of Application in Brazilian Cities (SisRot^®Lix)

We show a new technology to manage solid waste services through optimization methods (on sectoring, routing costs, and resources). This technology is called optimized planning and integrated logistics management (OPILM). It is being applied to Brazilian municipalities as it attends to their major natural features. The technology is formed by a framework of computational systems that uses optimization methods from sector arc routing and scheduling, fleet and staff scheduling, using also mobile smartphone apps. We present some of the results of real cases evaluated for residential refuse collection and selective waste collection in two Brazilian cities (Petrópolis/RJ and Bom Jesus dos Perdões/SP). The plan implementations achieved 17.9% from actual fixed and variable cost savings for sectors (vehicles and workers) and routes (time and distances) for residential refuse collection in Petrópolis/RJ. For the selective waste collection, we detail how we made our project to Bom Jesus dos Perdões/SP. We also present the returns considering costs involved in the management of the operational level and amortized by the investment required to use and apply the proposed technology for Petrópolis/SP

Uma Avaliação de Modelos de Cadeias Logísticas da Entrega de Jornais a Assinantes e Coleta de Leite a Granel

Este trabalho apresenta uma avaliação de duas alternativas logísticas  – Agrupamento e Roteamento Generalizado  ´ Localização em Centro e Roteamento, em duas unidades de negócios distintas: Distribuição de Jornais a Assinantes e Coleta de Leite a Granel. Descrevemos com detalhes as aplicações e suas particularidades, assim como apresentamos os resultados de nossas análises comparativas, usando os modelos sob os mesmos dados dos contextos de análise. Foi utilizada a ferramenta  SisRot News, que implementa os modelos logísticos aqui discutidos para estas cadeias de suprimentos