環(huán)形交叉口交通噪聲動(dòng)態(tài)模擬及分析
[Abstract]:Traffic noise prediction is an important task in urban traffic planning and environmental management. In order to improve the accuracy of traffic noise prediction, the real-time traffic flow of annular intersection is simulated dynamically by microcosmic traffic simulation software, and the noise emission model and propagation attenuation model of single vehicle are combined. The traffic noise of the annular intersection is calculated. Among them, the noise emission model of a single motor vehicle is used to measure the noise value of a single motor vehicle with a large, medium and small size at idle speed, uniform speed, acceleration, deceleration and other driving conditions, and is obtained by regression analysis. At the same time, the traffic noise of annular intersection is calculated by the method of theoretical model, and compared with the actual measurement at the annular intersection. The results show that this method has higher accuracy and applicability. This method is applied to the noise analysis of annular intersections with different traffic flow. By comparing the average noise and the distribution of noise, some characteristics of traffic noise at annular intersections are obtained.
【作者單位】: 廣東技術(shù)師范學(xué)院汽車學(xué)院;中山大學(xué)工學(xué)院廣東省智能交通系統(tǒng)重點(diǎn)實(shí)驗(yàn)室廣東省交通環(huán)境智能監(jiān)測(cè)與治理工程技術(shù)研究中心;
【基金】:國(guó)家自然科學(xué)基金(11574407) 廣東省科技計(jì)劃項(xiàng)目(2015B010110005)
【分類號(hào)】:U491.91
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