Metodologia para monitoramento de riscos de incidentes derivados de terraplenos rodoviários

• Autor(a) principal: Silva, Carlos Alexandre de Souza e
• Data de Publicação: 2021
• Outros Autores: [e-mail]
• Tipo de documento: Tese
• Idioma: por
• Título da fonte: Biblioteca Digital de Teses e Dissertações da UERJ
• Texto Completo: http://www.bdtd.uerj.br/handle/1/17193
• topic: Civil engineering; Highways; Soil mechanics; Accidents; Risk assessment - Environmental aspects; Engenharia civil; Rodovias; Mecânica do solo; Acidentes; Avaliação de riscos - Aspectos ambientais; ENGENHARIAS::ENGENHARIA CIVIL::GEOTECNICA

The growth and the concentration of people in urban centers create a vital need for the supply of food and products. National logistics has its transport matrix or road mode as the main element between the input and the destination of consume. Most Brazilian highways were built more than 70 years ago and do not go through the monitoring process. In several regions of the country or in the rainy season, there are natural landslides and landslides on the roadsides. It is known that financial resources are scarce, in contrast to the need for investment in monitoring services, conservation, maintenance and improvements for road safety. Then, in order to optimize the use of such resources, use a risk gradation derived from road embankment incidents. The question is about defining the risk matrix, considering the probability of occurrence and the consequent impact. In order to define perspective analysis, with the possibility of the occurrence of highways instability, the use of an Analytical Hierarchical Process - AHP, and for the effect of an incident on road safety, apply a service level assessment proposal. The methodology produces a Risk Matrix for incidents derived from road embankments, designating a hierarchy of levels, in order to allow planning for the allocation of resources, according to priority of services in certain periods, a condition that can vary from the continuity of monitoring, through to recovery and reinforcement, even the need for embankment stabilization works. Implementing the study on a road stretch granted to the private sector, 7% of the embankments were identified with an "unlikely" probability of occurrence in the incident risk matrix, 69% considered to be of "moderate" risk, a condition that refers to a stage observation and adoption of conservation measures within 12 months and with no “critical” risk situations being recorded.