Structural evaluation of perpetual flexible pavements for various climatic conditions

Properties of perpetual flexible pavements on heavily-trafficked rural roadways in different climatic conditions are analysed in the paper. In order to evaluate performance of such pavements, their behaviour is compared in several towns in Iran (Rasht, Tehran, and Ahvaz). It was established that the use of perpetual pavements is appropriate, especially for high-traffic-volume roadways. Perpetual flexible pavements exhibit much better resistance to fatigue cracking when compared to conventional pavements