从传统智能交通发展现状及瓶颈着手，结合车路协同技术的发展现状，提出了车-路-云-法一体化智慧交通解决方案，并在郑州智慧岛开放道路条件下实现了L4级自动驾驶公交示范运营，面向乘客实现常态化运营。项目成功落地验证了车路协同核心应用（盲区预警和信号协同）方案的可行性，为车路协同技术创新发展奠定了实践基础。结合国家最新5G及交通强国政策要求，对车路协同发展进行了展望。

This paper discusses the development status and bottleneck of traditional intelligent transportation at first, then combined with the development of motor road coordination technology it puts forward an integrated intelligent transportation solution of car, road and cloud. Next, it presents the L4 self-driving bus demonstration operation under open road condition of Zhengzhou Smart Island, which has been put into normal operations for passengers. The successful landing of the project has verified the feasibility of the road coordination core application scheme(blind zone early warning and signal coordination), and laid a practical foundation for the development of road cooperative technology innovation. Finally the paper visions the future of the coordinated development of the road in terms of the country's latest 5G and transportation power policy.