Influência no microclima urbano: pavimento asfáltico e pavimento intertravado

Abstract

Given the negative impacts of high temperatures in urban centers and the need for sustainable strategies to mitigate the urban heat island phenomenon, this study analyzed the influence of different pavement types on the urban microclimate, focusing on air potential temperature and pedestrian thermal comfort. Computational simulations were performed using the ENVI­MET software (version 5.5.1) in a hypothetical area located in the municipality of Crateús, Ceará, Brazil. Two paving strategies were compared: asphalt pavement and interlocking concrete pavers, both with distinct albedo and emissivity characteristics. The results indicated that interlocking pavers tended to provide lower daytime temperatures, whereas asphalt pavement showed greater heat absorption and retention throughout the day. Regarding thermal comfort, the differences between the two pavement types were minor, with both strategies remaining under conditions of pronounced thermal discomfort. Among the study's limitations, the simplification of certain variables in the computational model may have influenced the results. Nevertheless, the research highlights the importance of appropriate pavement material selection as an effective measure to mitigate urban heat island effects and reinforces the need for further studies that explore different urban scenarios and include additional parameters for a more comprehensive analysis.