Wenying Xie

Data Availability Statement The data that support the findings of this study are available on request from the corresponding author. The data are not publicly available due to privacy or ethical restrictions. References 2001. “Random Forests.” Machine Learning 45: 5–32. https://doi.org/10.1023/A:1010933404324. , , , et al. 2017. “The Development of China's Yangtze River Economic Belt: How to Make It in a Green Way?” Science Bulletin 62: 648–651. https://doi.org/10.1016/j.scib.2017.04.009. , and . 2020.

1 Introduction Transportation is usually referred to as the lifeblood of economic development. In particular, efficient freight transport activity is a strong driving force for economic growth [1]. The growth of economy is usually accompanied by an increase in terms of freight tonnage and ton-kilometers. As the largest developing country in the world, the China freight transportation system moved more than 52.98 billion tons of goods in 2021 [2].