Metodologia de análise espacial para identificação de locais críticos considerando a severidade dos acidentes de trânsito

Abstract

This paper presents and applies a methodology of spatial analysis to identify traffic accidents critical spots based on the severity index, allowing the analyst to select the appropriate treatment for each critical spot in an urban street network. As the main analytical tool, it is applied the nearest neighbor hierarchical spatial grouping technique which allows to identify and to represent the critical spots (intersections, links, corridors and areas) in terms of occurrence of spatial events in a digital map using the concept of the standard deviation elipse. This work may give a significant contribuition to the development of new methodologics of traffic accidents studies based on other variables related to the accidents, as traffic volumes, and also other spatial events that contribute for the occurrence of this critical urban phenomenon.