Beijing's East Sixth Ring Road, an invisible "super project" on the ground, has recently reached an important milestone: the excavation diameter of the "Canal" shield machine with a diameter of 16.07 meters has reached the end, and the cutterhead has reached the end of the receiving shaft. This means that the east and west shield tunnels of the Beijing East Sixth Ring Road renovation project are about to be connected. In order to solve traffic congestion and divide the urban area of the East Sixth Ring Road, improve the urban sub center road network system and green space layout, Beijing started the construction of the East Sixth Ring Road renovation project in 2019, moving the inner and outer rings of the East Sixth Ring Road from above ground to underground. Chai Dongran, Deputy Manager of the East Sixth Ring Road Project of Beijing Shoufa Expressway Construction Management Co., Ltd., described to reporters the beautiful scene after the completion of the project: more than ten roads have achieved east-west connectivity, citizens' vehicles can smoothly pass through underground tunnels, and the original site on the ground has been transformed into a park, making it convenient for surrounding residents to go out and see the green and take a walk and ride. Population agglomeration, traffic congestion, environmental degradation, and resource scarcity... The "big city disease" that occurs in the development of cities affects the well-being of the people and is an important livelihood issue. More than 20 kilometers to the east of Tiananmen Square, Beijing's urban sub center is orderly undertaking the relief of Beijing's non capital functions, and a batch of Megaproject focusing on industry, ecology, transportation, public services, etc. have sprung up, providing "good solutions" for the "big city disease", and constantly building the foundation of people's livelihood. On the banks of the Beiyun River, there are numerous hanging towers, and the outline of an approximately 1.28 million square meter "underground city" has emerged. The comprehensive transportation hub project of Beijing Sub-Center railway station under construction will become the largest underground comprehensive transportation hub in Asia after completion, releasing the powerful momentum of "station city integration" - underground, a three storey "super hub" integrating various transportation modes such as railway, subway and bus, will reach Xiong'an, Tianjin and other places in one hour, and Beijing Capital International Airport in 15 minutes; Above ground, it is an urban complex covering various business formats such as office, commerce, apartments, hotels, etc., achieving efficient coupling of transportation, business office, and comprehensive service functions. "In the future, this will not only be the hub of Beijing Tianjin Hebei transportation transfer, but also become a city level dynamic commercial center to meet the multiple application scenarios and consumption needs of millions of people, and create a benchmark for Chinese path to modernization urban governance." Zhang Dengke, deputy general manager of Beijing Sub-Center railway station Comprehensive Hub Construction Management Co., Ltd., said that the hub project is expected to be put into use in 2025. "These Megaproject embody the concept of 'people build a people's city and people serve the people'. The planning and construction of the sub center always adhere to the people centered development idea, and all urban functions are to meet the people's yearning for a better life." Hu Jiulong, member of the Party Working Committee and deputy director of the Management Committee of the Beijing Deputy Center, said. The Tongzhou campus of Huangchenggen Elementary School, Jingshan School, and Beijing Beihai Kindergarten have been put into use. The Tongzhou campus of Beijing Anzhen Hospital and the Tongzhou campus of the Children's Hospital Affiliated to the Capital Pediatrics Research Institute are accelerating their construction. Education and medical services related to people's well-being are also accelerating their layout in this "future city". To promote high-quality development, spiritual and cultural supply cannot be lacking. On the banks of the Grand Canal and in the Green Heart Forest Park of the city, theaters, libraries, and museums have sprung up, converging into