Urbanização de baixo impacto: alternativa à drenagem urbana de Teresina - PI

Abstract

More intensely, disturbances have been observed as a result of hydrometeorological phenomena on urban environments, such as floods and flooding. Teresina, initially planned between the Parnaíba and Poti rivers, would soon show the effects of the accelerated growth of the urban fabric and the challenges arising from such expansion. The present work analyzes the urban drainage of three sub-basins of Teresina, using the Low Impact Urbanization or Low Impact Development (LID) project as a compensatory technique, in order to observe the behavior of the hydrographs of the study areas with the presence of control devices at the source, in the form of green roofs. The study was based on the hydrological simulations using the SWMM software, starting from different scenarios, with and without the use of green roofs. Document analysis was used as a data collection instrument, including the Teresina Drainage Master Plan, remote sensing data, using Sentinel 2 satellite images and SRTM images, manipulated with geoprocessing techniques using Qgis 3.18 software , as well as the production of maps. The results found point to the possibility of using green roofs as a viable alternative to urban drainage in Teresina, however they should be associated with other modalities of control devices. And finally, based on data from bibliographic research, documentary research and simulations carried out, the Control Techniques Manual at source: Telha Verde was created in order to help professionals, public agents and the population in general, the importance of this drainage technician in engineering, architecture and urban planning for the municipality of Teresina-PI.