Definition, Function, and Framework Construction of a Smart Road

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Abstract
With the current large-scale construction of paved roads, continuous development of science and technology, and higher service requirements. Smart road is becoming the research hotspot in the world. But the most present research concentrate on some single intelligent functions of road or some specific technology such as snow-melting, solar energy harvesting, etc. There is no explicit definition or integrated framework for smart road. In this paper, on the basis of related concepts and researches of smart road at home and aboard, combined with some demonstration programs and technology trials, first, put forward a explicit definition and functions of smart road, then subdivided the functions, analyzed the key technologies and core problems of implementing each sub-function, finally summarized the definition, functions, and technologies, built an integrated framework of smart road, include physical frame and logical frame. The definition and framework construction would define the direction of smart road research and development to some extent.