The HealthDashboard project, based on advanced Computer Science technologies (Big Data, Data Visualization, and Data Science), is an innovative visualization and decision-making support tool for health professionals and public managers. It is an interactive visual dashboard for large-scale data analysis based on the Brazilian National Health System (SUS) hospitalization data. Its software architecture enables integration with the Hospital Information System (SIH-SUS) datasets from any region of Brazil so that health professionals can use it in hundreds of different cities. It processes SIH-SUS data and stores it into a geolocated relational database. Expert users can then perform advanced queries on the data with composite filters. Results are then displayed via multiple map visualizations, graphs, and tables. The goal is that this open-source platform will become a useful tool for science-based public health policymaking, influencing Brazilian public managers in the future to adopt an evidence-based, data-driven approach to healthcare management. For more information, please refer to the paper HealthDashboard: A Urban Public Health Geospatial Visualization Platform, by Gabriely Pereira, Lucas Stankus, Gustavo Carlos, Eduardo Pinheiro, Rafael Manzo, Kelly Braghetto, Fabio Kon and Paulo Meirelles, published in the 11th workshop on Visual Analytics in Healthcare (VAHC 2020).