Avaliação do impacto da utilização de revestimentos do tipo Camada Porosa de Atrito (CPA) no Desempenho da Segurança Viária (DSV) em meio urbano

Abstract

The use of Porous Friction Courses (PFC) in urban environments has been growing as an alternative to be applied in the city of Fortaleza-CE, when replacing asphalt layers that, over the years, have undergone successive applications of Asphalt Concrete (AC) without proper milling of the old layer. From the case study of a typical signalized intersection of Fortaleza-CE, this paper aims to analyze the impact of the replacement of the superficial old AC layers to the PFC solution in urban areas concerning the occurrence of vehicular conflicts. In order to do so, methods for skid resistance prediction and computational tools for traffic microsimulation and safety analysis were used. It was verified that the adoption of the PFC solution may represent a reduction of more than 100% of the theoretical need of the drivers to perform evasive maneuvers to avoid the occurrence of rear-end collisions.