Mainstream Traffic Flow Control on Freeways Using Variable Speed Limits

Rodrigo Castelan Carlson, Ioannis Papamichail, Markos Papageorgiou

Resumo


Controle do Fluxo Principal (CFP), realizado via limites de velocidade variáveis, é um conceito de controle para o gerenciamento em tempo real do tráfego em rodovias. Os benefícios de CFP para a fluidez do tráfego foram demonstrados por pesquisas recentes que utilizaram uma abordagem de controle ótimo e uma abordagem de controle realimentado. Neste artigo, as duas abordagens de controle são revisadas e aplicadas a uma malha rodoviária em um ambiente de simulação. O modelo utilizado da malha rodoviária, que reproduz um anel viário real, foi validado e alimentado com demandas medidas em campo. Os resultados de controle ótimo e controle realimentado são discutidos e comparados, e produzem melhora significativa no desempenho do sistema. A estrutura de controle realimentado é considerada apropriada para a aplicação em campo, uma vez que considera requisitos e restrições operacionais, e apresenta resultados satisfatórios. Além disto, o desempenho do sistema de controle mostrou pouca sensibilidade a variações nos parâmetros do controlador realimentado. Este resultado indica que os esforços para sintonia do controlador em campo podem ser reduzidos.

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DOI: https://doi.org/10.4237/transportes.v21i3.694

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Direitos autorais 2013 Rodrigo Castelan Carlson, Ioannis Papamichail, Markos Papageorgiou

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TRANSPORTES (ISSN: 2237-1346) é uma publicação da ANPET - Associação Nacional de Pesquisa e Ensino em Transportes (www.anpet.org.br)

 

Licença Creative Commons

Este obra está licenciado com uma Licença Creative Commons Atribuição-NãoComercial-CompartilhaIgual 4.0 Internacional.