As the urban development enters an era of intelligence, the closed-loop integration of planning, construction and management has become an important approach to achieve refined management of urban traffic. In order to explore the integration of "planning, construction and management" in practice, Qingdao traffic police have developed the "Qingdao Traffic Flow Tracking and Analysis Platform" with the assistance from NavInfo, the China Academy of Urban Planning & Design and Hisense Network, further promoting the application of its advanced concept of "situation-based policing".