Analysis of the Coordination of Highway Network in Urban Agglomerations Based on Fractal Theory

The complexity of highway network planning is closely related to the scale of integrated development of urban agglomerations. In view of the current situation of the development of inter-city highway network, urban economic and population factors, this paper establishes an analysis model of urban cluster highway coordination based on fractal theory, and further evaluates the internal structure of urban agglomerations through the matching relationship between inter-city highway and urban economic and population. For the purpose of quantitatively characterizing the coordination of the development of urban agglomerations’ highway network, the method is validated using data from the Yangtze River Delta, Beijing-Tianjin-Hebei and Guangdong-Hong Kong-Macao Greater Bay Area as the data samples. The results of the study can provide data and theoretical references for the planning of highway traffic in other urban agglomerations.