The State of the Art in SRI

In recent years, the advent of new technologies such as smart connected vehicles, autonomous vehicles, and cooperative vehicle–road systems has painted a promising vision for the future of transportation. Road infrastructure, which serves directly to facilitate vehicle movement, has encountered novel challenges in tandem with the automotive industry’s reform and innovation. Thus, transformations in transportation modes and road infrastructure are underway. The construction of the next generation of road infrastructure, namely SRI, has garnered significant global attention. This chapter aims to encapsulate the developmental context and framework of road infrastructure in light of current technological advancements and to explore the trends and future directions of SRI.