Highway designs: effects of heavy vehicles stability

From the perspective of heavy vehicles stability, some criteria of stability should be adhered to highway designs. In particular, the relationship between minimum radius, superelevation, slope angle, side friction, and design speed should be re-evaluated. In this regard, the static rollover threshold (SRT) is one of the most important factors used to define the stability of vehicles. This factor is highly dependent on the maximum lateral acceleration (ay) of a vehicle until it reaches the rollover threshold. This acceleration in turn is dependent on the vehicle speed and the radius of curvature. Taking into account the stability of vehicles, in this study the highways design is evaluated and compared with the classic design criterion. This study also suggests that in order to ensure driving safety, the State Highway Agencies should make a reevaluation of existing speed limits and the design of highway curves.

• Autores: Moreno Contreras, Gonzalo Guillermo; Vieira, Rodrigo De Souza; Martins, Daniel
• Tipo de recurso: Article of journal
• Fecha de publicación: 2018
• Institución: Universidad Nacional de Colombia
• Repositorio: Universidad Nacional de Colombia
• Idioma: spa
• OAI Identifier: oai:repositorio.unal.edu.co:unal/68528
• Acceso en línea: https://repositorio.unal.edu.co/handle/unal/68528; http://bdigital.unal.edu.co/69561/
• Palabra clave: 62 Ingeniería y operaciones afines / Engineering; diseño de vías; umbral de vuelco estático (SRT); vehículos pesados; seguridad vial; vuelco; salida de la vía; highway design; static rollover threshold (SRT); heavy vehicle; road safety; rollover; slide out
• Rights: openAccess
• License: Atribución-NoComercial 4.0 Internacional