Flexible pavement is a type of road surface designed to distribute traffic loads over a wide area. It typically consists of multiple layers, including a top layer of asphalt, which allows for some movement and flexibility. This design helps to absorb stress from vehicles, reducing the risk of cracking and damage. The layers of flexible pavement include the subgrade, base course, and surface course. The subgrade is the natural soil beneath the pavement, while the base course provides additional support. Together, these layers work to create a durable and resilient road surface suitable for various traffic conditions.