• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 1
  • Tagged with
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Analysis of the impacts on traffic resulting from the application of the studied traffic implementation methodologies: case in the city of Fortaleza-CE / AnÃlise dos impactos no trÃfego resultantes das aplicaÃÃes das metodologias de implantaÃÃo de semÃforos estudadas: caso da cidade de Fortaleza-CE

Juliana Carla Coelho 19 December 2011 (has links)
CoordenaÃÃo de AperfeiÃoamento de NÃvel Superior / A utilizaÃÃo de mecanismos que auxiliem a tomada de decisÃo à cada vem mais difundida no meio tÃcnico, o uso destes ferramentais por Engenheiros de TrÃfego auxiliam na anÃlise do desempenho de novos cenÃrios urbanos, definiÃÃo de novas estratÃgias de coordenaÃÃo, isolamento de semÃforos, dentre outros, de forma a contribuir para a eficÃcia do sistema de trÃnsito. Com o aumento da problemÃtica relacionada ao trÃnsito nas grandes cidades, a implantaÃÃo de semÃforos surge como uma das medidas mitigadoras. Devido à existÃncia de vÃrios mÃtodos de implantaÃÃo de semÃforos, nacionais e estrangeiras, conforme as caracterÃsticas das cidades que os originaram, à necessÃrio alÃm da identificaÃÃo dos locais onde se devem implantar os semÃforos, utilizar outros mÃtodos, a exemplo de um otimizador e um simulador de trÃfego, que atravÃs de medidas de desempenho, auxiliem à anÃlise dos impactos operacionais no trÃnsito, de forma a verificar quais as reais melhorias resultantes das implantaÃÃes, considerando outras realidades. Este trabalho terà como estudo de caso um trecho viÃrio da Ãrea central da cidade de Fortaleza-Ce. Na concepÃÃo deste estudo, foram definidas as seguintes etapas: aplicaÃÃo das metodologias de implantaÃÃo de semÃforos estudadas, definiÃÃo do modo de operaÃÃo e coordenaÃÃo e avaliaÃÃo operacional. Optou-se por utilizar o simulador de trÃfego Integration que atravÃs de suas medidas de desempenho auxiliou na definiÃÃo do cenÃrio que apresentou os maiores ganhos operacionais em relaÃÃo ao cenÃrio atual. / Decision making techniques have become increasingly widespread in the technical field. The use of such tools by Traffic Engineers assists in analyzing the performance of new urban settings, the definition of new coordination strategies, traffic signal isolation, among others, as to contribute to the effectiveness of the traffic control system. With increasing problems related to traffic in large cities, the implementation of traffic control signals emerges as one of the mitigating measures. As there are several national and international methods used in the implementation of traffic signals, depending on the characteristics of the cities in which they originate, it is necessary not only to identify the sites where traffic signals should be installed, but also to utilize different methods. Such methods include traffic signal optimization and simulation tools, which assist in the analysis of operational impacts through performance measures, indentifying which are the real improvements resulting from the implementations, considering other realities. The present work will study a road section from the central area of the city of Fortaleza, in the state of CearÃ, Brazil. The following stages were defined: application of the studied methodologies of traffic control signal implementation, mode of operation, and operational coordination and evaluation. The traffic simulator Integration was used, and through its performance measurements it was possible to define the setting that exhibited the highest operational gains in relation to the current setting.

Page generated in 0.0479 seconds