CLICK HERE for an instructional video on Bituminous Paving - Longitudinal Joint Best Practices
CLICK HERE To view a video created by NAPA/Brett Williams that discusses asphalt density and durability
CLICK HERE To view a video created by NAPA/Brett Williams on Long-Life Pavements
CLICK HERE To view a video video created by NAPA/Brett Williams on the smoothness of asphalt
Perpetual Pavement Design Software
The APA offers two versions of its software for the design and analysis of Perpetual Pavements. Both versions of the software are available as free downloads.
PerRoad is uses the mechanistic-empirical design philosophy. The program couples layered elastic analysis with a statistical analysis procedure (Monte Carlo simulation) to estimate stresses and strains within a pavement.