城市是人类文明发展的重要产物，也是人类重要的经济单元、居住之所和权力空间。随着经济全球化、工业化、信息化、网络化的发展，人类社会开始不断出现人口、经济规模巨大的特大城市、超大城市、巨型城市、全球城市、都市圈、城市群、全球城市—区域、跨洲大都市带等新形态。这些空间新形态在为人类经济发展提供强劲动力的同时，也带来了行政阻隔、环境污染、社会不平等、风险积聚等诸多新问题、新挑战，对国家和城市的跨区域治理体系重组和治理能力提出了新的需求。21世纪以来，中国城市化进程持续推进，截至2018年达到约60%的水平，都市圈、城市群建设成为国家促进区域经济发展的重要战略选择。为此，本报告立足中国实践发展的需要，放眼全球，旨在系统分析梳理21世纪以来全球都市圈、城市群发展的学术研究动态和跨界协同规划动向，以期为中国各地的都市圈、城市群建设规划提供思路和经验借鉴。
city is an important product of the development of human civilization，as well as an important economic unit，residence and power space of human beings. With the development of economic globalization，industrialization，information technology and network，new forms such as megalopolis，megalopolis，megalopolis，global cities，metropolitan areas，urban agglomerations，global city-region and transcontinental metropolitan belts have emerged in human society. While these new forms of space provide a strong driving force for human economic development，they also bring many new problems and challenges such as administrative barriers，environmental pollution，social inequality，risk accumulation and so on，which put forward new demands for national and urban trans-regional governance system restructuring and governance capacity. Since the beginning of the 21st century，China’s urbanization process has been developing continuously，reaching 60% by 2018. The construction of metropolitan areas and city clusters has become an important strategic choice for the country to promote regional economic development. Therefore，this report，based on the needs of China’s practical development and with a global perspective，aims to systematically analyze and summarize the academic research trends and cross-border collaborative planning trends in the development of global metropolitan areas and city clusters since the 21st century，and to provide ideas and experience for the construction planning of metropolitan areas and city clusters in various parts of China.
