Examining the impacts of road pavement roughness and rutting on traffic safety: A macrolevel analysis

Overall, the findings suggest that improving road conditions by reducing pavement roughness and rutting could enhance safety, from a network perspective. Road authorities should prioritize maintenance and rehabilitation efforts in areas where roughness and rutting are most severe to maximize safety outcomes. In addition, integrating macrolevel models to predict the safety effects of pavement conditions in strategic planning can enable road agencies to plan infrastructure investments more effectively and proactively.