IMPACT OF UNSEALED SURFACE PAVEMENTS ON AIR TEMPERATURE AND HUMIDITY IN PUBLIC SPACES

Abstract

Public space allows the interaction and encounter of the population without distinction of age, race or gender. The use and permanence in these places depend on the accessibility and comfort experienced by the user. Among the main aspects that determine comfort is temperature control or control of the sensation of heat conditioned by thermal radiation, environmental conditions (air temperature and humidity, wind speed, shade and shelter), and individual factors (age, health, clothing, physical activity). Pavement options affect the sensation of heat, some, such as reflective or lighter-colored pavements can help mitigate the urban heat island effect by reducing the absorption of solar radiation and lowering surface temperatures. This research focuses on the effects of thermal radiation from unsealed surface pavements on air temperature and relative humidity at different heights (5 cm, 60 cm, 90 cm, 120 cm, and 150 cm). Measurements were recorded in central public places such as squares and parks in the city of Loja (Ecuador) exposed to high levels of solar radiation. The study mainly revealed that grass and white terrazzo presented lower surface temperatures and increased the relative humidity of the air at 150 cm, refreshing the environment and contributing to the mitigation of the heat island effect.