IMPACT OF SUBGRADE SOIL VARIABILITY AND TRAFFIC LOADING ON FLEXIBLE PAVEMENT PERFORMANCE IN NIGERIA
Subgrade soil properties critically influence the performance of flexible pavements. This study evaluates subgrade variability and its implications for pavement durability in Nigeria, using soil samples collected at depths of 3 m, 6 m, and 9 m from Akazi sand beach in Ihiala, Anambra State. Laboratory tests including s…