交通流因子与道路交通噪声的关系研究

发布时间：2018-05-18 11:38

本文选题：交通流因子 + 交通噪声　；参考：《东北林业大学》2014年硕士论文

【摘要】：近年来,随着机动车数量的迅猛增加,我国城市交通噪声污染越来越严重。交通噪声已与废气、废水、废渣并列为城市四大污染物,是一个严重的社会公害问题,它会对人类身体、心理及生活产生很大危害。因此,城市道路交通噪声污染防治工作是当前一项紧迫而艰巨的任务。国内外研究表明,交通噪声与交通流因子(交通量、速度、车辆类型等)存在着很大关系。本文的目的就在于系统地研究他们之间的关系,为城市道路的规划、交通噪声污染的治理提供技术支持,这对改善城市环境,提高人们的生活质量有着重要意义。本论文首先对交通噪声理论特性进行了研究,并对哈尔滨市交通流状况、噪声状况进行了调研分析。通过物理方法建立了单车等效声级模型,在此基础上,假设所有车辆车型相同,车速相同,建立了理想交通流等效声级模型。然后,基于道路实际交通流运行状况,用噪声折算系数将不同车型、不同车速的车辆折算成具有相同车型、相同车速的车辆,并用等效流量与等效车速的思想将混合交通流等较为理想交通流,从而建立了基于实际情况的混合交通流因子与交通噪声的关系模型；应用SPSS软件对建立的模型进行参数标定,并通过对比分析的方法验证模型,结果表明建立的模型可用于道路交通噪声的预测。最后,运用Cadna/A软件建立了道路交通噪声模型,通过仿真模拟分析道路交通噪声的空间分布,研究了声屏障的设置问题。通过调整模型参数,可以得到不同交通流特性的声屏障降噪效果。
[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.
【学位授予单位】：东北林业大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U491.112;U491.91

【参考文献】