Análise de segurança viária no trecho da rodovia RSC-481 entre Cruz Alta e Sobradinho - RS

Abstract

Road safety affects thousands of people worldwide, including Brazil, which experiences high levels of accident occurrences. This fact reflects a public health problem that costs approximately R$ 50 billion per year to Brazilian society. This scenario is even worse when analyzing single-lane highways, which have a higher accident rate. In this context, a section of the RSC-481 highway, located between Cruz Alta and Sobradinho cities, Rio Grande do Sul State, was evaluated to assess road safety through statistical and geospatial analyses, and accident and severity rates. Moreover, road safety audits were applied based on the Method for Assessing the Potential Safety of Rural Single-Lane Road Segments. Statistical analysis of the data provided by the Road Command of the Military Brigade (CRBM) revealed that the majority of accidents involved cars, particularly male drivers, with collisions being the most frequent type. Geospatial analysis identified 13 critical sections, located between kilometers 1 and 113 of the highway. Accident rate and severity calculations highlighted 5 critical sections that were audited. As a result of the inspection, 6 segments were identified as potentially reasonably safe, while 8 segments were identified as potentially unsafe. Based on the obtained results, measures were proposed to improve road safety in the highway. These measures include implementing and adapting intersections and signage projects, improving the pavement surface, and creating pedestrian crossings.