Análise das emissões de poluentes veiculares em função de cânions urbanos e padrões de uso e ocupação do solo

Abstract

The vehicle emissions of pollutants are discussed by a large part of the literature in order to emphasize the mechanics of vehicle locomotion, to the detriment of macro aspects that influence the generation of trips. The present work proposes to evaluate the influence of factors that impact the generation of trips, such as the functional classification of the roads, the land use and the urban canyon configurations in the pollutant emissions standards. Data were collected in 2017, for a pair of local roads in the city of Fortaleza, which had different characteristics regarding the factors that influence the generation of trips. The influence of the collecting and arterial pathways located in the proximities of the analyzed routes was observed, being verified peaks of NOx and CO2 emissions in the vicinity of these routes. It was also observed the difference in the profile of CO2 emissions between avenues of canyons and regular canyons, both at peak and off-peak times. In addition, peaks were observed in the emissions in the blocks along those that presented mixed land use, urban canyons of greater depth and a greater flow of vehicles. Therefore, it is concluded that an analysis restricted to the mechanics of locomotion of the vehicles may not be enough to understand the issue of vehicular emissions of pollutants, since it ignores questions that influence the generation of roadways and, consequently, the profile of emissions.