Urban sidewalks

influence of tree specimens on the microclimate and thermal comfort of pedestrians in a tropical climate

Abstract

This study aims to evaluate the influence of different tree species on the microclimate and thermal comfort of pedestrians on urban sidewalks in a tropical climate region. The methodology consisted of analyzing eight points around the square near the university restaurant of the Federal University of Mato Grosso (UFMT), using portable meteorological instruments, and conducting questionnaires with volunteer pedestrians. The mPET index (Modified Physiological Equivalent Temperature) was calculated to measure pedestrians' thermal sensation at the stopping points along the transect. The originality of the research lies in the combination of technical measurements, subjective user perceptions, and morphological characterization of the analyzed spaces, revealing the importance of urban tree planting for sustainable urban planning. The points with higher tree density and size (such as P5, P6, and P8) exhibited lower levels of heat stress while reducing thermal perception, while also promoting the well-being of volunteers. In contrast, areas with little tree coverage (P1 and P3) had a more intense heat sensation. The study highlights the importance of the arboreal type and the strategic positioning of urban greenery for mitigating thermal discomfort, and promoting more livable and resilient urban environments.