Abstract
A reasonable comprehensive evaluation of the degree of urban agglomeration development is of great significance for its sustainable development. Although there are some studies on the evaluation of urban agglomeration development degree from the overall development level, only a few studies consider internal development equilibrium and internal interaction intensity. This work uses freight trip data as the main empirical data to establish three alternative evaluation indexes named the overall freight intensity, the internal freight intensity equilibrium level, and the internal freight interaction relative intensity to reflect the urban agglomeration’s overall development level, internal equilibrium level, and internal interaction level, respectively. Then, this work weights the above three alternative indexes to comprehensively evaluate the comprehensive development degree of 14 Chinese urban agglomerations. Finally, this work classifies these urban agglomerations into three stages according to the comprehensive evaluation values. The research results could help us to reasonably evaluate the degree of comprehensive development of urban agglomeration.
Highlights
An urban agglomeration is a highly developed spatial form of integrated urban areas [1]
With the rapid development of economic globalization and integration, urban agglomerations play the role of strategic support, growth poles, and core nodes in the national productivity distribution pattern, which plays the function of agglomeration and dispersion of the flow of production factors in the country and the region [3]
Using the CRITIC method, we obtain the weights of the overall freight intensity, the internal freight intensity equilibrium level and the internal freight interaction relative intensity as 0.307, 0.389, and 0.304, respectively, and further obtain the equation for calculating the comprehensive development degree of urban agglomerations as follows: F = 0.307X1 + 0.389X2 + 0.304X3, (6)
Summary
An urban agglomeration is a highly developed spatial form of integrated urban areas [1]. The freight data reflect the interaction intensity between urban areas [36,37,38,39] and fully reflect the development level of urban areas and urban agglomerations [37,38], which is very suitable for evaluating the comprehensive development degree of urban agglomeration. The aim of this work is to use freight data that can well reflect the development level and internal interaction intensity of urban agglomerations to establish alternative evaluation indexes based on three aspects: The overall development level, the internal development equilibrium, and the internal interaction intensity This evaluation will provide a reference for the reasonable and comprehensive evaluation of the degree of urban agglomeration development. Figure 4. 3D bar chart of the FTIO per unit area of 14 Chinese urban agglomerations
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