本文選題：交通流因子 + 交通噪聲　； 參考：《東北林業(yè)大學》2014年碩士論文

【摘要】：近年來,隨著機動車數量的迅猛增加,我國城市交通噪聲污染越來越嚴重。交通噪聲已與廢氣、廢水、廢渣并列為城市四大污染物,是一個嚴重的社會公害問題,它會對人類身體、心理及生活產生很大危害。因此,城市道路交通噪聲污染防治工作是當前一項緊迫而艱巨的任務。國內外研究表明,交通噪聲與交通流因子(交通量、速度、車輛類型等)存在著很大關系。本文的目的就在于系統(tǒng)地研究他們之間的關系,為城市道路的規(guī)劃、交通噪聲污染的治理提供技術支持,這對改善城市環(huán)境,提高人們的生活質量有著重要意義。 本論文首先對交通噪聲理論特性進行了研究,并對哈爾濱市交通流狀況、噪聲狀況進行了調研分析。通過物理方法建立了單車等效聲級模型,在此基礎上,假設所有車輛車型相同,車速相同,建立了理想交通流等效聲級模型。然后,基于道路實際交通流運行狀況,用噪聲折算系數將不同車型、不同車速的車輛折算成具有相同車型、相同車速的車輛,并用等效流量與等效車速的思想將混合交通流等較為理想交通流,從而建立了基于實際情況的混合交通流因子與交通噪聲的關系模型；應用SPSS軟件對建立的模型進行參數標定,并通過對比分析的方法驗證模型,結果表明建立的模型可用于道路交通噪聲的預測。最后,運用Cadna/A軟件建立了道路交通噪聲模型,通過仿真模擬分析道路交通噪聲的空間分布,研究了聲屏障的設置問題。通過調整模型參數,可以得到不同交通流特性的聲屏障降噪效果。
[Abstract]:In recent years, with the rapid increase of the number of motor vehicles, urban traffic noise pollution is becoming more and more serious. Traffic noise is one of the four major pollutants in the city. It is a serious social pollution problem. It will do great harm to human body, psychology and life. Therefore, the prevention and control of urban road traffic noise pollution is an urgent and arduous task. Studies at home and abroad show that traffic noise is closely related to traffic flow factors (traffic volume, speed, vehicle type, etc.). The purpose of this paper is to systematically study the relationship between them, to provide technical support for the planning of urban roads and the control of traffic noise pollution, which is of great significance to improve the urban environment and improve the quality of life of people. In this paper, the theoretical characteristics of traffic noise are studied, and the traffic flow and noise in Harbin are investigated and analyzed. An equivalent sound level model of a single vehicle is established by physical method. On the basis of this model, an equivalent sound level model of ideal traffic flow is established on the assumption that all vehicles are the same and the speed is the same. Then, based on the actual traffic flow on the road, the noise coefficient is used to convert different types of vehicles and vehicles of different speeds into vehicles with the same type and the same speed. With the idea of equivalent flow and equivalent speed, the ideal traffic flow such as mixed traffic flow is put forward, and the relationship model of mixed traffic flow factor and traffic noise is established based on the actual situation, and the model is calibrated by SPSS software. The results show that the model can be used to predict the road traffic noise. Finally, the model of road traffic noise is established by using Cadna/A software, and the problem of setting up noise barrier is studied by simulating and analyzing the spatial distribution of road traffic noise. By adjusting the model parameters, the noise reduction effect of noise barrier with different traffic flow characteristics can be obtained.
【學位授予單位】：東北林業(yè)大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：U491.112;U491.91

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本文編號：1905690