Based on the research on urban road traffic noise prediction, focusing on the single-vehicle noise models proposed in the current research on vehicle noise emission at home and abroad, in this paper the current status of single-vehicle noise model research in different countries, the applicability and shortcomings of foreign models in China are discussed from the perspectives such as vehicle types, simplification of single-vehicle sound sources, and applicability of single-vehicle noise models. Suggestions on the research of single-vehicle noise models in China are made to promote the application and accuracy of road traffic noise prediction technology. It is urgent for China to carry out in-depth research on the single-vehicle noise models at the national level, including refining the classification of vehicle types and the correction of various factors that affect the singlevehicle noise value.

road traffic noise  /  noise prediction model  /  vehicle type  /  noise source of a single vehicle  /  noise emission of a single vehicle