Engıneerıng and Polıcy Solutıons for Pavement Faılures on Nıgerıan Hıghways

Abstract

Pavement failures on Nigerian federal and state highways are a critical infrastructure challenge, adversely impacting the economy, environment, and public safety. This paper investigates the primary causes of these failures, such as substandard materials, design deficiencies, overloading, drainage issues, and poor maintenance. Through analytical evaluation, field data, and case studies, the article explores the multifaceted consequences of pavement deterioration, including increased transport costs, road accidents, and environmental degradation. Engineering solutions are proposed, focusing on material optimization, sustainable construction practices, effective drainage systems, and routine maintenance. Notably, the study advocates for the integration of recycled and locally available materials, including cement kiln dust and polymer wastes, to improve performance while minimizing costs. The paper concludes with actionable recommendations and research directions, aimed at guiding policymakers, engineers, and stakeholders toward sustainable highway infrastructure in Nigeria.