Influência de dispositivos de fiscalização eletrônica de velocidade no comportamento do condutor em cenário urbano

Abstract

In road safety speed is considered one of the main determining factors for the occurrence and severity of accidents in the world. Studies on this topic, especially those related to the effectiveness of speed reduction devices, obtain special importance given the accidents and traffic deaths epidemic. In this sense, the present study analyzes the impact of fixed speed cameras in the urban scenario on the driver’s behavior in relation to the speeds practiced. For that, we used the methodology of naturalistic driving studies. Speed data from 16 drivers was used. The study focused on speed cameras on arterial roads in the city of Curitiba, sufficiently distant from other speed reduction devices. Three different ranges were analyzed: 100-150 meters before the speed camera; 25 meters before and 25 meters after the speed camera; and 100-150 meters after the speed camera. Speed data was aggregated and analyzed as follows: by road, by topographic profile, by day period, by week period, by rain condition, by driver category and global. Two-Sample and Mann-Whitney statistical tests were applied to compare samples. The global analysis showed a speed reduction effect of 0.69 kph (- 1.33%). The pattern of punctual speed reduction (kangaroo effect) was identified, followed by an increase to a level higher than that identified before the speed camera (compensation effect). The groups that showed the greatest speed reduction were those with declining topographic profile (-5.83%), travel during the day period (-2.01%), on working days (-2.03%), with rain (-1.78%) and nonprofessional drivers (-1.86%). Uphill topographic profiles, professional drivers and weekend trips tended not to be influenced by the speed camera.