The main advantage of using recycled asphalt pavement (RAP) in new asphalt mixtures is the lower environmental impact, as it reduces the need for new materials.

Asphalt is primarily used in pavement design for its flexibility and durability, allowing it to withstand traffic loads and environmental conditions.

Geotextiles are used in pavement design primarily to provide drainage and separation between different layers of materials.

Aggregate gradation plays a crucial role in asphalt pavement design as it affects the load-bearing capacity and overall performance of the pavement.

The Marshall Mix Design method is significant as it helps determine the optimal asphalt content for a mixture to achieve desired performance characteristics.

Granular material is typically used as a base layer in flexible pavement design to provide support and distribute loads.

All of the listed options (rutting, cracking, and potholes) are common types of pavement distress associated with asphalt pavements.

Lower cost of production is NOT a characteristic of high-performance asphalt mixtures, which are typically more expensive due to their enhanced properties.

The Superpave Design Method incorporates traffic loading, material properties, and environmental conditions to create more durable asphalt mixtures.

The Tensile Strength Ratio Test is used to evaluate the moisture susceptibility of asphalt mixtures by comparing the tensile strength of dry and wet samples.