RESEARCH PAYS OFF: STONE INTERLAYER PAVEMENT SYSTEM: EXTENDING THE SERVICE LIFE OF LOW-VOLUME ROADS

Accelerated pavement testing at the Louisiana Transportation Research Center has confirmed that a stone interlayer design reduces reflection cracking in flexible pavements on low-volume roads. Although the initial cost of constructing the low-volume pavement structure is higher, the life-cycle cost is lower because the design lasts longer than pavements constructed with conventional methods.