Intercity transportation in urban agglomerations has the characteristics of large travel scale, diversified travel modes, diversified travel purposes, unbalanced temporal and spatial distribution and so on. Based on the mobile signaling data, this paper calculates the intercity travel volume and external traffic travel volume of the Beijing-Tianjin-Hebei urban agglomeration through data cleaning, processing, fusion and mining. Using the spatial autocorrelation analysis method, the spatial effect of intercity highway traffic travel is analyzed. The results indicate that the intercity highway travel volume of adjacent cities shows a significant positive correlation, and intercity highway travel is positively correlated with population, economic development level, urbanization development level and residents' income level.
There is a close relationship between the growth of consumption level and transportation development. To explore the interaction between social consumption growth and highway traffic development in China under the “dual circulation” development pattern and analyze the degree of influence and feedback mechanism between them. This study uses a vector autoregressive model to analyze the cyclical data of total retail sales of consumer goods and road traffic volume in China from 2010-2019. Results show that (i) there is a long-term interactive coupling relationship between the growth of total retail sales of consumer goods and the growth of highway traffic volume; (ii) there is a certain lag in the impact of the growth of highway traffic volume on the growth of total retail sales of consumer goods. In the early stage, the growth of total retail sales of consumer goods is mainly influenced by its own fluctuation, and the influence of transportation development is relatively small. In the long run, the improvement of transportation environment will stimulate economic growth. This study is useful to deepen the understanding of the relationship between China's increasing social consumption capacity and highway transport development in a “dual circulation” development pattern. Thus, the effectiveness of the inner cycle can be better exploited.
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