Green corridors: Effect of tree shading on the surface temperature of pavements in Passo Fundo, RS

Abstract

This article presents a study on the performance of vegetation shading on the surface temperature of sidewalks in an area chosen to study the possibility of implementing a green corridor in the city of Passo Fundo, RS. The area is in the highly urbanized center of the city with the presence of medium-sized vegetation on the public promenade. Part of the pavements analyzed is exposed to direct solar radiation and part to the shade of trees, to be able to estimate the reduction of their surface temperature and, consequently, the thermal contribution to the ambience of the humid subtropical urban area. The method used was mathematical simulation accompanied by verification measurements. Through the visible sky factor of the urban area, the possibility of implementing a green corridor with trees is determined. The results indicate that only when the visible factor is equal to or greater than 45º does it offer adequate conditions to receive medium and large vegetation, as is the case of the streets of Passo Fundo. RS. They also report the problem of tree shading in the winter of the humid subtropical region.

DOI:https://doi.org/10.56238/sevened2023.006-118