摘要
针对原铁路噪声比例预测法不适应铁路提速和环境变化的需要,对其方法进行了改进。改进后的比例法采用现场实测的暴露声级作为输入参数的噪声基本量,可以按货运列车、常速列车、提速列车、客运专线列车等分类。提出的修正量参数适应由于列车、车辆技术改进或更新所引起的噪声辐射强度的变化。
The original proportional prediction method adopted to predict railway noise was modified because it could not suit for the noise prediction when train speed was increased. This modified method uses exposure sound level measured on the spot as basic noise data for input, which can be typed into freight train, train at normal speed, train at higher speed and special train for passenger, etc. The modified factor proposed can be adapted for the changes of noise intensity caused by technical improvement of train or car.
出处
《中国铁道科学》
EI
CAS
CSCD
北大核心
2005年第3期109-113,共5页
China Railway Science
关键词
比例法
铁路噪声
噪声预测
环境影响评价
Acoustic variables measurement
Environmental impact
Forecasting
Improvement
Railroad transportation
Speed
