Effect of Channelization on the Performance of Flexible Pavements in Nigeria

Ikwueze, Stella Nneka

Department of Civil Engineering, Enugu State University of Science and Technology, Nigeria

Department of Civil Engineering, Kampala International University, Western Campus, Ishiaka, Uganda

ABSTRACT

In traffic management and road design, channelization which is the act of directing traffic into designated lanes is a common approach. The impact of channelization on the performance of flexible pavements is a major concern in Nigeria, where road infrastructure is essential to connectivity and economic development. This research looks at the effects of channelization on flexible pavements in Nigeria, taking into account both present-day circumstances and potential future obstacles. The concentration of vehicle loads in Nigeria as a result of channelization is a significant factor that contributes to the early deterioration of flexible pavements. The nation’s road network, which frequently sees high traffic loads from commercial vehicles, is prone to accelerated wear and tear in channelized lanes. Common problems include surface deformation, rutting, and cracking, especially in urban areas and along major highways where there is heavy traffic. Inadequate maintenance of the road exacerbates these issues, resulting in shorter pavement life and higher repair costs. There are other difficulties with Nigeria’s road system that compound the consequences of channelization. Flexible pavements deteriorate quickly due to a variety of factors, including poor drainage systems, shoddy building techniques, and the use of inferior materials. In addition, the country’s environment, which is marked by intense rains in some areas, hastens the deterioration of pavement, particularly when coupled with inadequate drainage and traffic patterns that are channelized. The demand on Nigeria’s road network is anticipated to increase as the country’s population continues to expand and urbanization rises. The consequences of channelization may be exacerbated by the possible arrival of autonomous cars and a greater dependence on data-driven traffic management systems, which might further concentrate traffic volumes in certain lanes. It will be crucial to use better materials, create more durable pavement designs, and put more efficient maintenance plans in place in order to lessen these upcoming difficulties. Channelization’s impact on Nigeria’s flexible pavements’ performance is a serious problem that has to be addressed right now. Improving maintenance procedures, raising standards for road construction, and taking future traffic patterns into account when designing pavement are all necessary to meet this problem. Nigeria may better maintain its road system and encourage sustained economic growth by implementing these measures.

Keywords: Channelization, Pavement, Surface, Flexible, Performance

CITE AS: Ikwueze, Stella Nneka (2025). Effect of Channelization on the Performance of Flexible Pavements in Nigeria. IAA Journal of Scientific Research 12(2):8-16. https://doi.org/10.59298/IAAJSR/2025/122816.00