Avaliação da influência da vegetação arbórea no microclima: estudo de caso na Praça da Liberdade, Belo Horizonte, MG

Abstract

It is usually difficult to estimate whether a project at the urban design scale will match the thermal comfort requirements of users. This is often due to the lack of objective analytical process. Thereby urban designers have poor environmental criteria for decision-making or the evaluations are only based in subjective categories. This paper shows a more objective process for analyzing an urban precinct based on urban climate research techniques. A better understanding of the microclimate effects of the urban morphology is achieved by collecting data in transects, checking the shade conditions during the measurements and making cartograms of the microclimate variables and thermal sensations. The results show the tendency to a certain bioclimatic variability due to the solar exposition of façades and open areas as well as the shadings provided by greenery and/or by buildings. The procedure, which is very simple, may assist urban designers in the project solution analysis and decision-making.