Offor George IkechukwuMuoka AnthonyAbubakar DayyabuMusa Umar KoloMohammed AdoMambo Abdulhameed2026-05-122025-05-05Offor George Ikechukwu et al. (2024). Life Cycle Cost Analysis Of Asphalt And Soil Pavements In Abuja-Keffi Highway Road Using Real Cost 3.0 Software,Life Cycle Cost Analysis Of Asphalt And Soil Pavements In Abuja-Keffi Highway Road Using Real Cost 3.0 Software.2(2). 277-28710.5455/NJEAS.188734https://repository.nileuniversity.edu.ng/handle/123456789/768This study presents a Life Cycle Cost Analysis (LCCA) of the Abuja-Keffi Expressway, focusing on the Mararaba axis, to evaluate and compare the economic implications of two flexible pavement options: asphalt pavement and soil pavement. The research is motivated by the economic challenges faced by road engineers and contractors in Nigeria due to poor road conditions and the associated high maintenance costs. The study employs RealCost 3.0 software and follows a 35-year evaluation period methodology to account for all life cycle costs, including construction, maintenance, and user costs. The analysis considers design alternatives, agency costs, user costs, maintenance costs, and discount rates. The study compared two pavement alternatives, Asphalt Pavement (Alternative 1) and Surface Dressing Pavement (Alternative 2), focusing on key financial metrics such as the Undiscounted Sum, Net Present Value (NPV), and Equivalent Uniform Annual Cost (EUAC). The Undiscounted Sum, representing total expenses over the project's lifespan, reveals that Alternative 1 incurs $1,170,436.88(₦925,825,091.28), while Alternative 2 costs $441,433.94(₦348,878,774.54). Considering the time value of money, NPV is higher for Alternative 1 at $1,136,191.38(₦896,236,417.58), compared to $413,271.56(₦326,795,499.75) for Alternative 2. The EUAC, indicating uniform annual costs equivalent to NPV, is $41,060.38 (₦32,476,199.78) for Alternative 1 and $14,935.06(₦11,793,070.46) for Alternative 2. A higher NPV signals a financially attractive investment, while a lower NPV may suggest less economic viability, especially when factoring in the time value of money. The results highlight the economic benefits of asphalt pavement in the long term, considering durability and performance. The study recommends proper design and construction of drainage systems to reduce flooding, regular maintenance to extend pavement life for asphalt pavement, quality control in construction, and consideration of local conditions in pavement selection, while To minimize costly repairs or replacements surface dressing pavement in the future, regular maintenance such as sealing cracks and applying a sealant coat should be done to extend the life of the floorenTransportation InfrastructureAsphalt PavementSurface Dressing PavementCost AnalysisLife Cycle Cost Analysis (LCCA)Article