Analise de simulação de cruzamento semaforizado
AUTOR(ES)
Paulo Henrique Pozzetti
DATA DE PUBLICAÇÃO
2002
RESUMO
Conflicts emerge from the competition between elements participating in the circulation system, when these achieve severe degree traffic accidents occur. These accidents should be analyzed trom various points view so that its comprehension may indicate corrective measures. This work aims to identify the influence of dynamic publicity panels in the perception-reaction time of drivers in the visualization of light signals of intersections with high accidents rates in the city of São Paulo using an animated 2D simulation in a computer environment. The intersection of Rebouças Avenue and Brigadeiro Faria Lima Avenue was selected as the study site in the simulation. A generic model was defined using the breaking and traversed distance during perception time. The interference of the variables speed, perception time and environment behind the light signal was analyzed in the model. The animation was developed using photographs of the site generating 36 different films. Each film represented a different combination of variables. The films were presented to groups of users for their identification of the color of the light signal: the first group at the Faculdade de Engenharia Civil at UNICAMP and the second group at the Compania de Engenharia de Tráfego (CET) at SP, summing up to 180 participants. Data analyses pointed out that the variables with greatest statistical significance in the focal group for the developed model were speed, perception time and presence of the panel. Surprising1y, the presence of the panel behind the focal group contributes for the correct perception of the light signal. It was also observed that in higher velocities the indefinition in identification of the light signal is greater. There for, it is recommended the use of perception-reaction time higher then 2 seconds. In the developed model the variables familiarity with the site and group of users were not relevant. It can be conc1uded that the 2D animated simulation in computer environment increments the ana1ysis of traffic safety
ASSUNTO(S)
simulation methods segurança de transito - estudo e ensino acidentes de transito traffic accidents transito urbano urban traffic metodos de simulação animação por computador computer animation
