• 关键词：交通噪声  预报  随机过程

• 基金项目：

• 吴硕贤
• 浙江大学建筑系 杭州 310027

• 摘要：用等效车的方法将K Takagi等人提出的单车道单车种负指数的分布的车流噪声计算公式加以推广,使之可应用于对多车道多车种自由车流的累计分布噪声级L_x和等效声级L_eq作出预报多次应用的结果证实本计算公式的精度可满足实用要求.

• Abstract：The equivalent vehicles approach was suggested to modify the Takagi traffic noise calculation formula, which is based on an exponentially distributed vehicles model for single line flow with the same acoustic power. The modified model can be used to predict Lx and Leq levels generated by a free multi-type traffic flow on a multi-lane road. The model was applied practically with satisfaction.

• Key words：noise  random process

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