The Impact Of T-shaped Street On Traffic Noise And Noise Spreading Regularity Analysis

In recent years,the urban traffic has experienced a rapid development in our country.The total street mileage is increasing constantly.The development of urban traffic facilitate our people’s lives,meanwhile,it imposes a big pressure on the noise environment of urban traffic.The noise pollution has been an important problem that we have to meet with.Survey data shows that the amount of residents who live in the environment of noise pollution is increasing year by year.Noise pollution now presents a trend of deterioration.It is endangering people’s lives and health seriously.So it is urgent to carry out related research of traffic noise.With the accelerating process of urbanization,the building density on both sides of streets become large.Enclosed street appears more frequently in our lives.T-shaped street is an important component of urban street.So,in this essay we use T-shaped enclosed street as our basic research model.Along with analysis software:Cadna/A,SPSS,EXCEL and basic theory of acoustics,we make a research on the spreading effects and regularity of urban traffic noise.The main contents are as follows:(1)In street model we put some noise receivers.With comparison and analysis of the data we collect from the receivers,we reveal how vehicle flow effects the spreading of traffic noise.In the end of this chapter,we do some work on data fitting by using SPSS.(2)With comparison and analysis of the data we collect from the receivers,we reveal how the width of street effects the spreading of traffic noise.In the end of this chapter,we also do some work on data fitting by using SPSS.(3)Research on the portrait spreading regularity of traffic noise in T-shaped street and data fitting.(4)Research on the transverse spreading regularity of traffic noise in T-shaped street and data fitting.(5)Research on the vertical spreading regularity of traffic noise in T-shaped street and data fitting.