**3. Measures to improve the climate adaptability of megacities**

According to the results of the second section, the fragility structure of the central cities of the three major urban agglomerations is obvious. Their economic *Design of Cities and Buildings - Sustainability and Resilience in the Built Environment*

#### **Figure 1.**

*Sketch map of vulnerability of Beijing-Tianjin-Hebei urban agglomeration, Yangtze River Delta urban agglomeration and Guangdong-Hong Kong-Macao Greater Bay Area.*

**45**

*Climate Resilience, Megalopolis Vulnerability and Spatial Distribution*

development is in a leading position in the urban agglomerations and the whole country, and from the perspective of urban infrastructure, cities have a strong ability to deal with fragility. The central cities and economically underdeveloped cities of the three major urban agglomerations are all relatively vulnerable areas in the urban agglomerations, and are areas with low sensitivity and high response capacity. For such cities, the focus is to improve their comprehensive carrying capacity. In addition, a series of pan-smart city technologies that emerged under the background of the fourth industrial revolution are playing an increasingly important role in the development and operation of cities. Scientifically and rationally cognizing the relationship between technology and urban multi-agents, and guiding the coordinated development of future technological development and urban planning, design, construction, and governance is crucial for building a resilient system of

Classification Not vulnerable Low vulnerable Vulnerable Very vulnerable

**0** ≤ **V** < **0.2 0.2** ≤ **V** < **0.4 0.4** ≤ **V** < **0.6 0.6** ≤ **V** < **1**

**3.1 Improve the comprehensive carrying capacity of central cities and urban** 

**Optimize the layout of population functions to enhance the city's carrying capacity.** Urban agglomerations must form a reasonable allocation of population and industrial layout within the city, and form a "city-region" organizational model in terms of modern economic cultivation. Optimizing the population distribution within urban agglomerations can not only alleviate the "urban disease" caused by the excessive concentration of population in megacities, but it is also a necessary means to realize the high-level population function of world-class urban agglomerations and enhance the overall participation of the urban agglomeration in global competition. To optimize the layout of population functions with a global perspective, it is necessary to consider the differentiated needs of the diverse population structure of world-class urban agglomerations for urban space and urban functions, and improve the comprehensive carrying capacity of the urban agglomeration. **Give full play to comparative advantages and build a multi-level power system for regional development.** To improve the carrying capacity of central cities, it is necessary to strengthen regional integration and build a multi-level dynamic system for regional development. According to the differences in the location conditions of the economy, society and resource environment, division of labor, coordination, and organic configuration form an overall process of synergy. The idea of planning and formulating the main functional zone can be followed. Some areas do the division of ecological products, and some areas do the division of industrial products. The main function is different, the area type will be different. Different regions have different development levels and advantages, so the focus of division of labor is also different. By improving regional policies and spatial layout, mechanisms for counterpart cooperation, cross-regional cooperative governance, transfer payments, and ecological compensation should be established between

*DOI: http://dx.doi.org/10.5772/intechopen.95253*

*Criteria for the classification of urban vulnerability levels.*

**Vulnerability value**

**Table 3.**

climate-adaptive large urban agglomerations.

advantageous regions and underdeveloped regions.

**Improve the efficiency of agglomeration and tilt the allocation of construction land to advantageous areas.** In order to improve the efficiency of

**agglomerations**

*Climate Resilience, Megalopolis Vulnerability and Spatial Distribution DOI: http://dx.doi.org/10.5772/intechopen.95253*


**Table 3.**

*Criteria for the classification of urban vulnerability levels.*

development is in a leading position in the urban agglomerations and the whole country, and from the perspective of urban infrastructure, cities have a strong ability to deal with fragility. The central cities and economically underdeveloped cities of the three major urban agglomerations are all relatively vulnerable areas in the urban agglomerations, and are areas with low sensitivity and high response capacity. For such cities, the focus is to improve their comprehensive carrying capacity. In addition, a series of pan-smart city technologies that emerged under the background of the fourth industrial revolution are playing an increasingly important role in the development and operation of cities. Scientifically and rationally cognizing the relationship between technology and urban multi-agents, and guiding the coordinated development of future technological development and urban planning, design, construction, and governance is crucial for building a resilient system of climate-adaptive large urban agglomerations.
