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Simulation of Vertical Growth Near the Green Area of "Avenida Brasil" in Antofagasta Midtown, Chile
Published: 17 October 2012 by MDPI in The 2nd World Sustainability Forum session Sustainable Urban Development
Abstract: Vertical cities growt is argument of discussion world-width. Population increases and better soil use is needed, in terms of efficiency and density, in many cities of the world. However, an excessive vertical growth seems to be dengerous, especially near the green areas of midtowns. In this paper the case of Antofagasta, Chile, is studied. Town of Antofagasta locates in the north desert coast of Chile, in a typical arid climate, latitude 23° South and longitude 70° West. Green areas are quite precious in arid climates, and have to be preserved by building overheating effect. In the last 20 years, in Antofagasta have been constructed almost 30 new towers, more than 70 meters high. At least 7 of these towers are negatively affecting nowadays the "Avenida Brasil" area, a green park of 70 meters large and one kilometer long, which is the principal green area of the city center. Paper studies two possible future evolutions: one following the actual trend, and other one proposing new building concept, limited in vertical dimension and integrated in the environment. Parameters analyzed are: temperature, humidity, solar radiation, wind speed and direction in the green area. Results show the impact of building growth in terms of overheating and wind reduction on the ground area studied. Additionally, social impact of living in towers is also discussed in the paper, searching for better design in order to guarantee user\'s comfort, satisfaction and stimulation in their residences. Thermal, visual and acoustical effects produced by towers are considered in the critical evalaution of Antofagasta city evolution. Part of this work relates to architectural laboratory "energy and architecture" currently on-going at School of Architecture of the Northern Catholic University.
Keywords: Vertical growth, green areas