Evaluation of Supply–Demand Relationship of the Yangtze River Freight Market

In order to effectively predict the supply–demand status of the inland waterway freight market of the Yangtze River, this study takes the inland waterway transportation of the Yangtze River as the research object, selects the supply–demand balance index model as the basic model, combines the characteristics of the Yangtze River Freight Market (YRFM), establishes the supply–demand balance index model of the inland waterway freight market of the Yangtze River, and uses the early warning light method in the early warning theory for reference, combined with mathematical statistics and expert analysis. The state interval and critical value are divided for the calculated supply–demand balance index of the inland waterway freight transport system of the Yangtze River. Through empirical analysis, the change in trend of the supply–demand balance index is basically consistent with that of the Yangtze River’s dry bulk cargo comprehensive freight index. Since the Yangtze River’s dry bulk cargo comprehensive freight index can be used as a barometer to reflect the trend of the YRFM. The model calculation results can truly reflect the supply–demand status of the YRFM and help operators to optimize transportation capacity and the government to adjust policies in a targeted manner.