Abstract
With the rapid advancement of urbanization, the sustainable development of the city has received more and more attention. The measurement of the sustainable development of a city can provide an important reference for the development of the city. Therefore, this paper firstly constructs an index system for five dimensions: society, the economy, the environment, resources, and technology. Then, a sustainable development measurement model is established based on dissipative structure theory, grey entropy and coupling theory, and the evolution trend and coordinated development of the city are measured. Finally, Chengdu, an important central city in the western region of China, is selected for sustainable development measurement research, from which it was found that the city became more sustainable and more orderly, the development level was constantly improving, and the coordination was continuously improving, which was consistent with the actual situation and indicated that the proposed measurement model could effectively measure and evaluate sustainable urban development.
Highlights
The world urbanization growth rate is expected to reach 60% by 2030 and 70% by 2050 [1], and the increasing urbanization growth rate has caused more and more residents to enter the city
There has been increasing research focused on sustainable urban development
To promote sustainable urban system development, it is necessary to assess the sustainability of existing practices, measure sustainable urban development system evolution, and analyze the impact mechanisms to ensure efficient, coordinated and orderly overall development
Summary
The world urbanization growth rate is expected to reach 60% by 2030 and 70% by 2050 [1], and the increasing urbanization growth rate has caused more and more residents to enter the city. While grey relational analysis can be used to calculate the average value of associated measures point by point and to assess the degree of relevance, it has two shortcomings: (1) local point association tendency—when the point-related measure value distribution is discrete, the point at which the Sustainability 2019, 11, 293 point-correlated measure value is largest determines the tendency of the overall correlation accuracy; and (2) information loss—the average tends to overwhelm the many point-related measures and does not take advantage of the rich information provided by the point-related measures [27] To overcome these problems, this paper uses grey relational entropy analysis to scientifically and objectively weight the sustainable urban development measurement indexes, dissipative structure theory to deeply explore and analyze the evolutionary sustainable urban development system trends and coupling theory to analyze the internal subsystem coordination. (3) Sustainable urban development system evolutionary analysis is conducted based on the annual grey entropy change, the system development level, the coordination scores, a time series analysis of the orderly evolutionary trends, and the development level and coordination status
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