Diagramas de Voronoi para a definição de áreas de abrangência de hospitais públicos no Município do Rio de Janeiro

Abstract

One of the most important pieces of information for health resources planning is the definition of catchment areas for health units. Voronoi Diagrams are a potential technique for this purpose. They are polygons with the property whereby adjacent polygons have their borders located within the same distance of the respective generator points. One possible adjustment to the catchment areas thus defined is the use of weighted Voronoi Diagrams, which result in an improved representation of a health unit's actual capacity. In this study, the 21 public general hospitals in the city of Rio de Janeiro, Brazil, were used as generator points for Voronoi Diagrams. Non-weighted Voronoi Diagrams were initially implemented and then used as the basis for obtaining weighted Voronoi Diagrams, using as weights the annual admission rates estimated for each unit. In the classic Voronoi Diagram case, some catchment areas had similar sizes, although their respective health units had different characteristics. In the weighted case the areas were modified in a way that appeared closer to the actual functioning of the units. The method appeared simple to implement, used easy-to-access data, and did not rely on geopolitical considerations such as existing administrative areas. It thus provided a more realistic picture of a unit's capacity to support basic health programs.

Sistemas De Informações Geográficas Aplicado Ao Ensinoaprendizagem: Uma Experiência Interdisciplinar No Planejamento Urbano E Da Paisagem Para Cidades E Projetos Inteligentes

“…O presente estudo analisa a malha de saúde primária e secundária do município de Florianópolis, Santa Catarina. Para tal, foram definidas quatro camadas de análise (Figura 1): delimitação das áreas de abrangência por meio dos polígonos de Voronoi (GARCIA; PINHEIRO, 2020;REZENDE, 2000;ZWARENSTEIN et al, 1991); LINDÉN, 2021;TAVARES et al, 2019).…”

Voronoi diagrams – inventor, method, applications

“…Polygons in their classic form were used to determine transportation accessibility of, i.a. railway stations and other transportation stops, schools, hospitals (H. Wu et al 2013, F. Karimi et al 2009, F. Rezende et al 2000. The polygon method was used to analyze spatial patterns of distribution and accessibility of discount stores (W. Kisiała, M. Rudkiewicz 2017), to determine accessibility of green areas in certain large cities in Europe (A.…”

Regionalização como estratégia para a definição de políticas públicas de controle de homicídios

“…Existem outras possibilidades metodológicas propostas na literatura para formação de conglomerados 15,16,17,18,19,20 , mas não existe nenhuma comparação sistemática entre elas. Optamos então por trabalhar com um método cuja implementação está disponível em programa gratuito e cuja aplicação em dados de saúde e violência é inédita na literatura.…”