高速公路车流量甚大,至使行车噪声严重影响周围环境,尤以在其出,入口处的噪声则更大。对此噪声的预测及防护措施乃是世界各国正在研究的问题。本文基于日本道路公团的实验数据和实验结果,对高速公路出、入口处的噪声特性,噪声预测计算的原理、方法及计算公式,噪声影响因素的决定方法等作了简要阐述,对设计高速公路的隔音墙有一定的参考意义。 Highway traffic is very large, so that traffic noise seriously affect the surrounding environment, especially in its out, the noise at the entrance is even greater. Prediction of this noise and protective measures are the problems that countries in the world are studying. In this paper, based on the experimental data and experimental results of Japan Road Public Corporation, the noise characteristics of highway exit and entrance, the principle, method and calculation formula of noise prediction, the decision method of noise influencing factors and so on are briefly described. Highway noise walls have a certain reference value.