環(huán)形交叉口交通噪聲動態(tài)模擬及分析
發(fā)布時間:2018-12-13 18:14
【摘要】:交通噪聲預(yù)測是城市交通規(guī)劃和環(huán)境管理的重要任務(wù)。為提高交通噪聲預(yù)測的準(zhǔn)確性,利用微觀交通仿真軟件對環(huán)形交叉口的實時交通流進行動態(tài)模擬,再結(jié)合單輛機動車的噪聲排放模型以及傳播衰減模型,計算得到環(huán)形交叉口的交通噪聲。其中,單輛機動車的噪聲排放模型是對3 372輛包含大、中、小型的單輛機動車在怠速、勻速、加速、減速等各種行駛狀態(tài)下的噪聲值進行測定,再通過回歸分析的方法得到的。同時利用理論模型的方法對環(huán)形交叉口的交通噪聲進行計算,并在環(huán)形交叉口實測進行對比,結(jié)果證明本方法具有更高的計算精度和適用性。將該方法應(yīng)用于不同車流量下的環(huán)形交叉口噪聲的分析,通過平均噪聲及噪聲分布情況等的對比,得到環(huán)形交叉口交通噪聲的若干特點。
[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)重點實驗室廣東省交通環(huán)境智能監(jiān)測與治理工程技術(shù)研究中心;
【基金】:國家自然科學(xué)基金(11574407) 廣東省科技計劃項目(2015B010110005)
【分類號】:U491.91
[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)重點實驗室廣東省交通環(huán)境智能監(jiān)測與治理工程技術(shù)研究中心;
【基金】:國家自然科學(xué)基金(11574407) 廣東省科技計劃項目(2015B010110005)
【分類號】:U491.91
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