This National Road Research Alliance (NRRA) project evaluated the impact of material-based methods for improving or enhancing centerline rumble strip durability and functionality while maintaining safety, through the use of full-scale field projects.
Rumble strips are installed over already susceptible longitudinal joints. Therefore, the use of materials-based treatments to enhance joint durability is important. Through testing, the team identified that VRAM at the joint significantly reduces the crack propagation rate with rumble strips, thereby increasing performance at the joint.
