Construindo um sistema de indicadores de sustentabilidade intra-urbano associados à ventilação nos espaços públicos

Abstract

The search for environmental performance indicators of intra urban sustainability has arisen from the need to plan soil occupation considering the local climatic conditions and to establish sustainability criteria. Aiming to contribute for establishing intra urban sustainability indicators, we researched the ventilation of public spaces associated with environmental performance. The ventilation indicators in the urban spaces contribute as parameters to diagnose problems, define priorities, elaborate projects and programs, evaluate the performance of an activity and direct investments. This way, they give support to a decision making that process that takes into account the urban process, which facilitates future solutions. Natural ventilation is recommended as an important comfort strategy in hot and humid weather and in the hot season of the compound humid weather, besides being indispensable in any climate for renewal of the air. The urban morphological aspects, the surrounding solid mass and its shape, dimension and distribution were considered as essential attributes, thus allowing the elaboration of parameters to comprehend the complex urban context.