• JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
 
  Bookmark and Share
 
 
Master's Dissertation
DOI
https://doi.org/10.11606/D.18.2010.tde-13122010-164945
Document
Author
Full name
Isabela Aparecida Fornaciari
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Carlos, 2010
Supervisor
Committee
Ferraz, Antonio Clovis Pinto (President)
Brasileiro, Luzenira Alves
Françoso, Maria Teresa
Title in Portuguese
Investigações no campo da programação semafórica
Keywords in Portuguese
Corsim
Integration
Pedestres
Semáforos
Simulação
Tempo de travessia
Abstract in Portuguese
Neste trabalho são investigados alguns aspectos relacionados com a programação de tempos de semáforos isolados. A seguir são comentados os principais resultados obtidos. Os valores obtidos na cidade de São Carlos são os seguintes: tempo médio total (no início e no final) perdido no verde mais amarelo por fase veicular nos semáforos igual a 3,12 s (interseção em nível e fluxo sem conversão); velocidade média dos pedestres na travessia em semáforos igual a 1,28 m/s e velocidade correspondente ao 85 percentil igual a 1,00 m/s. Com exceção de alguns casos especiais, os valores do atraso fornecidos pelos métodos: Webster, HCM-2000, Simulador Integration e Simulador Corsim são da mesma magnitude e, portanto, perfeitamente viáveis de serem utilizados nos estudos práticos. Na determinação dos tempos que compõem a fase destinada à travessia de pedestres em semáforos, os métodos Ferraz e MUTCD são mais indicados que os métodos Webster/Denatran e CET-SP, uma vez que proporcionam adequada segurança sem "assustar" os pedestres e com o mínimo de prejuízo à capacidade do fluxo veicular. O emprego de fase exclusiva para pedestres em semáforos com duas fases veiculares leva aos seguintes acréscimos aproximados nos valores do atraso médio dos veículos: 40% para fluxos veiculares até 1000 v/h, 25% para fluxos veiculares da ordem de 1100 v/h e 20% para fluxos veiculares da ordem de 1200 v/h.
Title in English
Research on the signal programming field
Keywords in English
Corsim
Crossing time
Integration
Pedestrians
Simulation
Traffic lights
Abstract in English
In this research some aspects related to time programming of single traffic lights are investigated. The main results are commented as follows. The values obtained in the city of São Carlos are: total average lost time (in the beginning and in the end) in the green and yellow phases in each vehicular signal phase equal to 3.12 s (level intersection and flow without conversion), pedestrians average speed on the traffic lights crossing equal to 1.28 m/s and speed corresponding to the 85º percentile equal to 1.00 m/s. Except for some special cases, the values of the delay provided by the Webster, HCM-2000, Simulator Integration and Simulator Corsim methods are of the same magnitude and, therefore, they are perfectly feasible to use in practical studies. In determining the periods of the pedestrian crossing stage for the traffic signals, the Ferraz and MUTCD methods are more indicated than the Webster/Denatran and CET-SP methods, since they provide appropriate safety without "scaring" the pedestrians and with minimal damage to the vehicular flow capacity. The use of exclusive pedestrian phase at two vehicular stage signals leads to the following approximate increases in the values of the vehicles average delay: 40% to vehicle flow up to 1000 v/h, 25% for vehicle flow about 1100 v/h, and 20% for vehicle flow about 1200 v/h. In this research some aspects related to time programming of single traffic lights are investigated.
 
WARNING - Viewing this document is conditioned on your acceptance of the following terms of use:
This document is only for private use for research and teaching activities. Reproduction for commercial use is forbidden. This rights cover the whole data about this document as well as its contents. Any uses or copies of this document in whole or in part must include the author's name.
IsabelaFornaciari.pdf (2.25 Mbytes)
Publishing Date
2011-02-22
 
WARNING: Learn what derived works are clicking here.
All rights of the thesis/dissertation are from the authors
CeTI-SC/STI
Digital Library of Theses and Dissertations of USP. Copyright © 2001-2024. All rights reserved.