Resumen

ARRIAGA-OSUNA, Maria Fernanda; RINCON-MARTINEZ, Julio César  y  MARTINEZ-TORRE, Karen Estrella. Adaptive thermal comfort in an urban canyon: The case of a Mediterranean climate. Ing. invest. y tecnol. [online]. 2024, vol.25, n.3, e2069.  Epub 07-Abr-2025. ISSN 2594-0732.  https://doi.org/10.22201/fi.25940732e.2024.25.3.019.

The physical nature of the urban environment contribute to the formation of Urban Heat Islands (UHIs), making many cities thermally uncomfortable by increasing air temperature (Ta) by approximately 0.4°C per year, with negative effects towards thermal comfort. Leading to limitations in the use of outdoor spaces due to the absence of an adequate thermal environment. These effects show the importance of studying the thermal sensations of these places in order to establish the bases for correct decision-making in the design and urban planning process. The objective of this work was to evaluate the adaptive thermal comfort through the thermal sensation of the pedestrian of an urban canyon in a residential area. For the study, the period of transition from cold to warm (spring) in Ensenada, Baja California, Mexico was chosen. A correlational study was developed, where different physical variables of the thermal environment were measured (black globe temperature, dry bulb temperature, relative humidity and air speed) and surveys on thermal sensation were applied, of which 211 observations were obtained, 114 (54.1%) were responses from men and 97 (45.9%) were responses from women, 18 to 30 years of age. Data analysis was carried out with the method Average of Thermal Sensation Interval (ATSI), where the phenomenon of adaptation was observed due to the behavior of the registered thermal sensations and the ranges of thermal comfort (reduced and extensive) estimated through the standard deviations (SD). The reduced and extended comfort range for thermal sensation was 2.7 K and 5.4 K respectively; for the hygric sensation it was 13.2 % and 26.3 % respectively; and for the wind speed it was 2.6 m/s and 4.2 m/s, respectively.

Palabras llave : Adaptive approach; microclimate; outdoor thermal comfort; thermal environment; urban heat island.

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