Freight activities are mainly affected by the economy, but not all are determined by the economy. Taking the data of Shandong Province from 2008 to 2018 as an example, the analysis of the relationship between road transport freight volume and GDP in different regions confirms that economic development is not the only factor that affects freight activities. Using the grey relational analysis method to analyze the freight volume data of railways, highways, aviation and water transportation, the total fixed asset investment of the whole society and the industrial structure and the degree of correlation, the relationship between the total freight volume and it can be indirectly obtained. The results show that the main economic factor that affects freight activities is the GDP of the primary industry, and other factors also have a certain impact. Understanding the factors that affect freight transport can have a certain guiding effect on the development of the freight industry, thereby optimizing the freight structure and improving freight efficiency.

CICTP