Since the end of 2018, the construction of smart transportation high-speed demonstration projects has shown explosive growth, with more than 27 projects according to incomplete statistics. The new infrastructure provides an unprecedented development opportunity for smart Expressway and vehicle road coordination. The transportation industry has a strong desire and great doubt for new technologies. It not only hopes to solve the industry pain points through disruptive innovation, but also worries that new technologies will stop at theoretical concepts and shallow applications.

At present, the traffic capacity of the high-speed road network can not fully meet the growth demand of traffic flow, traffic congestion is becoming increasingly serious, traffic accidents occur from time to time, and the impact of extreme weather and geological disasters has also attracted more and more attention. Security and emergency rescue work is facing increasing pressure. It is necessary to build real-time monitoring and early warning, active control and guidance, and accompanying service capabilities to realize the "knowable, measurable, controllable, and serviceable" of the road network.

Smart high-speed traffic refers to the highway with corresponding facilities and equipment along the highway, and a traffic operation control center, which integrates and applies advanced technologies such as sensing, communication, information, cloud computing, big data, artificial intelligence, green energy and so on to achieve safer, faster, economic, healthy and transportation. The foundation and essence of smart highway is still highway, which brings new value and sense of gain to users and managers through the realization of innovative services. Smart highway is not only mechanical and electrical construction, but also a pile of software and hardware products.

According to the national strategic planning and the layout of vehicle enterprises, the proportion of connected vehicles in China will gradually increase, and the number of dedicated lanes will increase. In the future, it will be in a mixed state for a long time. For natural driving (non connected manual driving), connected driving and intelligent driving vehicles, roads should focus on providing message reminding and warning services, driving behavior guidance services and closed-loop collaborative control services respectively. According to the traffic composition, it is divided into the following four levels. The higher the level, the higher the requirements for road intelligence, networking and informatization, and the higher the construction cost. Focus on the first three levels of construction ideas.

Based on the powerful perception system, through video, radar, annunciator, road environment, vehicle can bus and other data sources, combined with high-precision map and high-precision positioning, through the v2x vehicle road coordination model algorithm design, the dynamic traffic area early warning is realized, the safety accidents on high-speed roads are reduced with low delay and high efficiency, and the traffic efficiency is improved; At the same time, it provides traceable event management and driving analysis services for traffic managers and traffic participants, and connects with external systems such as command and dispatch, asset management, information services, and electronic toll collection, providing decision support and data empowerment for traffic managers.

On May 19th, 2018, the Shanghai Municipal People's government and China Electronics Technology Group Co., Ltd. signed a strategic cooperation framework agreement in Shanghai, focusing on the electronic information fields such as smart city and digital China. Relying on the resources of CETC in the fields of smart city, digital economy, new generation broadband mobile communication, comprehensive security, Internet of vehicles and so on, they jointly promoted the construction of a new generation of intelligent IOT information infrastructure in Shanghai.