Geovisualização e seu potencial na inclusão da infraestrutura azul no planejamento territorial: estudos de caso em escalas regional e local no Quadrilátero Ferrífero/MG

Abstract

In view of the problems arising from hygienic and outdated urban planning, and the increasing burden on drainage and flood control infrastructures, there is a need to think about urban planning with innovative drainage practices. In this context, the concept of blue infrastructure proposes an approach more focused on the management of rainwater, through systems to capture, clean and reduce the impact of rainwater on direct runoff. This work seeks to apply the resource of geovisualization to propose blue infrastructure projects and policies and expand the understanding of this theme in the planning process at different scales of territorial approach. To this end, two case studies were carried out at different scales: the first, defined by the Paulo VI, and the second covering all the territory of the Quadrilátero Ferrífero. In general, people adhered to the proposals involving blue infrastructure techniques and it was possible to perceive the process of geovisualization as an important resource in broadening the understanding and the consequent incorporation of the theme in opinion-making and decision-making processes. However, after the experience of the two case studies, it was observed that the Geodesign method for proposing blue infrastructure techniques worked best in the study of the neighborhood scale, in which there are more details of the territory and the user is able to have more clarity the type of proposal that can be made as a contribution to planning. It is observed that the domain of the workshop participants in relation to the studied territory proves to be a facilitator to understand the limitations and demands of the territory and to propose projects and policies that talk to the needs of the place. In the smallest territorial area (Quadrilátero Ferrífero), the participants developed, in general, more comprehensive policies, involving large areas of the territories. The most punctual proposals for blue infrastructure were only possible due to the cartographic details of the thematic maps that comprised the WebGis, since only with the Geodesign evaluation maps the scale did not favor this type of proposal.