在道路交通噪声随机点声源预测的研究基础上 ,根据地下停车库车辆进出的特点 ,提出分时段建立的不同车辆类型的随机点声源模型 .该模型通过计算机模拟给出按时段分布的预测值 ,与实测值进行比较后发现 ,模型预测精度较好 ,比较符合实际情况 Based on the research on the random sound source prediction of road traffic noise, the random point sound source models of different vehicle types established in different time periods are proposed according to the characteristics of underground parking garage vehicles entering and exiting.The model provides the prediction of time-period distribution by computer simulation Value, compared with the measured value found that the model prediction accuracy is better, more in line with the actual situation