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Underground space is extremely important for the compact and spatial intensive development of cities in the world. The gap of underground space between developing countries and developed countries comes from the immaturity of the market and institutional environment, which leads to an urgent demand for new urban governance theories to guide practice. Governments often pay attention to safety, while the market is business-oriented and focuses on commercial value which leads to a trade-off between them. This paper explores the safety and commerciality from the viewpoint of urban governance theory, and uses case studies of three underground space projects in Hangzhou, China, finds that the logic behind safety and commerciality choices is actually the logical relationship between the government and the market. It is concluded that a logical conversion from complete government-led to market-oriented and government-assisted is needed to resolve the imbalance between safety and commerciality. This paper criticizes the shortcomings of traditional planning theories on urban governance and subject research, incorporates the system and time dimensions into the framework of urban governance theory, and proposes a multiple governance mechanism which can integrate safety and commerciality as a means of maximizing socio-economic benefits. • This paper reviews the irreconcilability of security and commerciality of underground space. • The paper uses case studies and examines three underground space projects in Hangzhou. • It is found that the logic behind security and commerciality choices is actually the logical relationship between the government and the market. • It is concluded that a logical conversion from complete government-led to market-oriented and government-assisted is needed to resolve the imbalance between security and commerciality. • propose a multiple governance mechanism which can integrate safety and commerciality as a means of maximizing socio-economic benefits. [ABSTRACT FROM AUTHOR]

Due to rapid urbanization and urban-rural dual structure, urban villages in China have gradually become populated areas dominated by a large number of migrants. Similar to slums, the problems of urban villages need to be solved urgently and the governance of urban villages is a serious issue in urban management. Therefore, combining the past international experience of governance of slums with a case study of urban villages in Hangzhou, this paper develops a governance model framework for an urban village. This framework is designed to integrate inclusiveness with urban service boundaries (USB) and to take the social service system as the key to achieve people-oriented governance through active participation of government, the market, the community and social organizations. This paper proposes that wealth distribution, housing security, social integration, cultural identity should be combined with infrastructure to form three differentiated models: a high-quality service model, a gradual and comprehensive model, and a social security model, which are suitable for different urban villages and the needs of different groups. The policy implication of this paper is to put forward a way to alleviate the problems of urban villages and make the inhabitants of urban villages, especially low-income migrants, fit into the city. • The social service system can link inclusiveness and the USB. • The paper builds a new governance framework for Chinese urban villages. • 3 governance models are combined systematically to serve urban villages. • Transfer payments, affordable housing and subway are essential for the poor. [ABSTRACT FROM AUTHOR]