The aim of this doctoral thesis is to develop a hydrodynamic model to analyze Direct Surface Runoff (DSR) in urban microdrainage, integrating elements of geomorphology, with a special focus on the impacts of anthropic interventions on the landscape. The study aims to identify runoff concentration patterns and flooding points in hypothetical precipitation scenarios, especially in urban roads. The analysis focuses on the morphology, as well as the physical and topographic characteristics of the built environment that directly impact runoff, including slope, land use, and the roughness of covering materials. The modeling is carried out using the PCSWMM software, which facilitates the two-dimensional simulation of DSR. The QGIS tool is used for the organization and analysis of spatial data.

Methodologically, two urban scenarios were considered for the simulation and study of the hydrological-hydraulic conditions of DSR in the study area delimited by the Santa Mônica Campus of the Federal University of Uberlândia/MG, Brazil. This analysis covers the following situations:

1. Road plan and topography for the year 1989, as presented by the Physical Master Plan of the Institution (DICIE-UFU, 1991); and
2. Topographic survey conducted between the years 2013 and 2014.

The hydrological conditions in both situations were defined by specifying design rains with Return Periods (Tr) of 10 and 50 years. These values, according to Porto (1995) and SUDERHSA (2002), are parameters frequently used in drainage projects. The obtained results aim to enrich the understanding of DSR dynamics in urban environments, providing essential information for planning and executing strategies for rainwater management and governance.

The integrated approach between geomorphology and hydrological-hydraulic modeling, combined with the use of QGIS and PCSWMM software, aims to broaden the debate on the dynamic behavior of rainwater under analogous conditions. The conception of characteristic indicators, cause-and-effect statistical analyses, together with the production of thematic maps of areas susceptible to surface flow concentration and flooding, will serve as a reference for enhancing the techniques of forecasting and managing adverse natural events in urbanized areas.