Poroelastic road surface (PERS) pavement is currently the low-noise pavement with the best noise reduction potential. However, its composition design varies significantly from one researcher to another and poses great difficulties in practical application. This article reviews the development history of PERS, summarizes current research on its composition design and pavement performance, and provides an outlook on future developments. The review shows that two types of PERS mix compositions — rubber-skeleton and aggregate-skeleton PERS — are used in different ways. PERS exhibits exceptional noise reduction capacity, sufficient strength and mechanical properties, but relatively poor water resistance. The design featuring high air voids and rubber content poses challenges to its durability, which necessitates a balance between noise reduction capability and mechanical properties of PERS from the perspective of mix design. The proposed on-demand design philosophy provides a foundational framework for guiding the mix design of PERS to meet specific noise reduction requirements and accommodate diverse traffic conditions. Further investigation is required to establish the fundamental design principle and develop high-efficiency, cost-effective binders for durable PERS mixtures.
Zeng et al. (Fri,) studied this question.