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, and surface courses. The subgrade is the natural soil or rock beneath the pavement, while the base layer provides additional support. Together, these layers work to create a durable and resilient road surface suitable for various traffic conditions.