Build Chengdu into a "world modern garden city"?

I. Research background

1, pay attention to the reasonable expansion of urban boundaries and build a compact city. In the 1920s, when Howard wrote his book Tomorrow? When the concept of rural city was put forward on the road of peaceful real reform, many Americans began to yearn for rural life, so they moved to the suburbs to have a safer, looser and more intimate living environment. However, this has also caused the ineffective expansion of cities and the disorderly spread of suburbs, which has brought many problems to the subsequent urbanization in the United States. Facing the problems brought by disorderly suburbanization, new urbanism came into being, which advocated limiting the expansion of city scale, improving land use efficiency and building density to curb the excessive spread of cities. Based on the lessons of American urban development, when building a modern garden city, Chengdu must reasonably grasp the expansion of urban boundaries and build a compact city. Specifically, the following points need to be achieved: First, under the guidance of the global Chengdu planning, the future Chengdu is neither a homogeneous development centered on the central city nor a decentralized development, but a coordinated and synchronous development of urban corridors (dense development areas) connected by transportation networks and rural areas; Second, urban planning, industrial development planning and land use planning should be combined, coordinated and complementary to prevent long-standing problems of fragmentation and conflict; Third, strictly protect non-urban construction land and agricultural and forestry land. At the same time, it is of great practical significance to reasonably control the expansion of urban boundaries. Reasonable and effective planning can well control the emergence of future villages in the city and help Chengdu achieve the long-term goal of urban-rural integration. Therefore, Chengdu attaches importance to the reasonable expansion of urban boundaries and it is imperative to build a compact city. 2. Create a harmonious new community and return to the traditional neighborhood relationship. In the process of rapid development, on the one hand, modern cities have created huge material wealth, and the living standards of urban residents are improving day by day. On the other hand, the characteristics of urban life have also caused indifference and lack of human feelings among residents, which directly affected the further improvement of urban residents' living standards. An important idea of new urbanism is to understand people's feelings and needs in urban development and build a humanized urban home. The best embodiment of this concept lies in the community construction of TND model, which focuses on reshaping the traditional urban neighborhood space and promoting the development of communities and neighborhoods. This model breaks the simplified functional division in the modern urban system, returns to the traditional neighborhood lifestyle, and emphasizes the importance of communication space, neighborhood units and traditional neighborhoods. Therefore, combined with new urbanism, Chengdu should pay attention to the following aspects in future community construction: first, the multi-functional mixture of residence, employment and commerce and the provision of various types of houses are the basis for creating colorful community life; Secondly, moderate community scale and community center with obvious characteristics are the keys to create identifiable places; Third, by maintaining the diversity of people in the community, we can increase the contact and interaction between people in the community and weaken the influence of social problems such as polarization between the rich and the poor. 3. People-oriented, promoting people's all-round development. People-oriented development concept is the core concept of Scientific Outlook on Development. The development of a city will always go through a simple economic center and gradually begin to pay attention to the most active part of urban elements-the development of urban residents. New Urbanism advocates increasing public participation in urban planning, advocating a healthy lifestyle and paying attention to fairness and the provision of public welfare. The reason why New Urbanists attach so much importance to people's all-round development is that people's development will undoubtedly be an important symbol of the future urban development degree and urban development potential. As one of the most potential cities in the west, Chengdu must pay attention to people-oriented and take the all-round development of people as one of the goals of urban development under the long-term goal of building a modern garden city. At this point, the enlightenment of new urbanism to Chengdu lies in: first, public participation must be paid attention to in urban planning and construction; Secondly, under the guidance of people-oriented thought, improve the urban living environment and maintain the harmonious development of man, nature and living environment; Third, understand and pay attention to the changes of people's emotions and needs in urban development. 4. Strengthen the construction of ecological civilization and promote the harmonious coexistence between man and nature. While the scale of the city is gradually expanding and its functions are increasingly enhanced, the consumption of energy resources and pollutant emissions are also increasing substantially. The original natural ecosystems such as forests, grasslands and wetlands are being destroyed and reduced, the original ecological balance is broken, and the physical environment of the city has undergone irreversible changes. The contradiction between urban development and nature is increasingly prominent, which seriously restricts the further play of the role of cities. New Urbanism advocates that urban construction should respect and return to nature, which is a reflection on the blind pursuit of economic goals in the primitive industrialization stage. Strengthening the construction of ecological civilization and promoting the harmonious coexistence between man and nature is the inevitable trend of urban development in the future. At the same time, the 17th National Congress of the Communist Party of China clearly put forward the strategic task of building ecological civilization, which is an important thought of Scientific Outlook on Development and the proper meaning of urban development. In 2007, Chengdu was awarded the title of National Forest City, but there is still a long way to go to achieve the goal of a modern garden city. Therefore, in the future development, Chengdu needs to achieve: first, to achieve harmony and integration between the city and the natural environment such as forests, villages, mountains and water bodies; The second is ecological orientation, which regards building an ecological city as one of the connotations of building a modern garden city; Third, the choice of urban industries should conform to the principles of resource conservation and environmental friendliness. 5. Building an urban transportation system based on public transportation * * * With the expansion of the city scale, the urban population has increased dramatically, and the city has become more and more crowded and blocked. In addition, the disorderly construction of suburbs also makes the design of road system unreasonable, so the traffic load of cities is increasing day by day, and urban congestion has become a part of urban diseases. Faced with traffic congestion, urban planners have widened roads and built interchanges again and again to solve the problem by dispersing traffic. On the one hand, it effectively relieves the traffic pressure, but on the other hand, the improvement of road conditions has stimulated the desire of more urban residents to buy cars. After a period of time, the urban congestion recovered as before, so the improvement of roads did not solve the urban congestion problem well. New urbanists have noticed that the root of traffic congestion lies in the increasing number of cars. To solve the urban traffic problem, we must control the number of cars. At the same time, in order not to affect the travel of urban residents, new urbanists put forward the construction of urban transportation system based on public transportation, and thus put forward the TOD model of urban transportation construction. Nowadays, the traffic congestion problem in Chengdu has been criticized by the public and has become the weakness of Chengdu's future development. Therefore, in the next few years, on the one hand, Chengdu needs to better transform and improve the road traffic system, on the other hand, it needs to focus on developing the public transportation system with subway, light rail and bus as the main body, and strictly control the issuance of automobile license plates and the driving of motor vehicles, so as to greatly reduce the commuting time of urban residents and realize a better Chengdu. Fourth, the summarized new urbanism has been widely recognized and supported in the short 20 years after its birth, which embodies the strong vitality of the theory itself. New Urbanism has well overcome the disadvantages brought by marginal urbanism, such as traffic congestion, urban sprawl, the decline of central cities and lack of human touch, and re-established a new concept of sustainability, people-oriented and harmonious combination with science and technology. In the process of building a modern garden city, Chengdu must pay attention to grasping and drawing lessons from the concept of new urbanism, and pay attention to urban boundaries, community construction, residents' development, ecological construction and public transportation. I believe that in the near future, Chengdu will definitely become a bright pearl in the west of China and even in the world.

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