How does traffic volume influence asphalt pavement design?

Traffic volume significantly impacts asphalt pavement design. As traffic volume increases, the stress and strain on the pavement also rise due to the greater load associated with more vehicles. Higher traffic volumes necessitate the use of thicker and more robust pavement structures to withstand these increased stresses over time and to ensure the pavement remains functional and durable under the repeated loading conditions. This includes considering factors such as the choice of materials, layer thickness, and overall depth of the pavement to prevent issues like cracking, deformation, and fatigue.

Designing for higher traffic levels helps ensure that the pavement can support the anticipated traffic loads throughout its intended service life, minimizing maintenance and rehabilitation needs. This approach also enhances safety and performance, ensuring that the pavement can handle the wear and tear from increased vehicle frequency and weight.