Towards a Latin-Based Urban Design: The role of CAAD in decolonial design practices in Brazil

Abstract

This paper discusses the opportunities of parametric urban design associated with well-known urban design metrics to develop a Latin-based urban design model. The research argues that contemporary parametric tools can pave the way for design solutions rooted in a decolonial perspective. We present two case studies in João Pessoa (Brazil). The first case study, in the Varadouro neighborhood, considers the limitations of heritage conservation, exploring the opportunities for new densities and uses towards improving urban vitality. The second case study, in the Bancários neighborhood, presents comparative scenarios that raise straightforward questions about the impact of floor space index considerations on density and urban infrastructure. A parametric model developed in Grasshopper for Rhinoceros 3D simulates the scenarios and evaluates the urban metrics in each sample. This process provides valuable information for city planners, evidence-based estimates of impact on existing infrastructure, and a basis to identify and explore solutions that shift traditional governance models to more contemporary and responsive ones. In the discussions, the article explores how implementing such simulations in the urban planning process would clarify to all actors involved the potential outcomes of unquestioningly accepting the demands of construction companies and real estate developers' lobbyists.