Starting from 2020, China has entered a new stage of urban construction with "less increment and more stock" focusing on urban renewal. Zhu Zongliang, deputy chief engineer of China Railway Fifth Survey and Design Institute Group Co., Ltd., delivered a speech.

Urban rail transit should focus more on built-up areas, consider exploring the renewal value of surrounding cities, he said. The Institute of Railway Engineering and Tsinghua University Architectural Design and Research Institute jointly established the Urban Renewal Research Center.