The surface course of rigid pavement is typically made of __________.

The __________ layer is the foundation of the pavement structure and must be compacted thoroughly.

Flexible pavement structures are designed to __________ traffic loads effectively.

A __________ drainage system prevents waterlogging and increases road longevity.

The __________ protects the subgrade from moisture and provides additional stability to the pavement.

Pipes used in drainage systems must be __________ to resist corrosion and maintain efficiency.

The material used in the surface course is commonly __________ to ensure durability and smoothness.

The __________ course distributes the load to the subgrade and provides additional support.

A culvert is used to __________ water under roads or railways.

Proper __________ of the subgrade is essential for the stability of the pavement structure.