Simulation and Analysis on the Traffic Noise Models of Four-Lane Highway

DOI

10.2991/iccte-17.2017.9How to use a DOI?

Keywords

Highway; 1/3OCT; Single source; Dual source; Simulation

Abstract

At present, highway traffic noise prediction models mostly use the equivalent continuous A-weighted sound pressure level to predict the noise within the country as well as in abroad, and they also usually use one line source to simulate the noise source in the simulation analysis of highway traffic noise, which makes some differences to the actual situation. This paper uses acoustic simulation software to establish a two-way four lane highway traffic noise model, and under single source prediction model and dual source prediction model, it calculates the sound pressure levels at four different receivers which are 20m, 40m, 80m, 160m distance from the road shoulder from frequency domain. Lastly, it analyses the sound pressure level frequency spectrum of the receivers under the two kinds of source models. Then came to a conclusion that, between the two kinds of source models in the two-way four lane highway model, the differences of the sound pressure levels at each center frequency of the receivers which are 20m or far from shoulder, are not more than 1.29dB, and the differences of the total sound pressure levels are not more than 1.19dB. The conclusion will provide valuable references for the traffic noise control and prediction.

Copyright

© 2017, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Xintan Ma
AU  - Shichang Feng
PY  - 2017/07
DA  - 2017/07
TI  - Simulation and Analysis on the Traffic Noise Models of Four-Lane Highway
BT  - Proceedings of the 2017 2nd International Conference on Civil, Transportation and Environmental Engineering (ICCTE 2017)
PB  - Atlantis Press
SP  - 49
EP  - 53
SN  - 2352-5401
UR  - https://doi.org/10.2991/iccte-17.2017.9
DO  - 10.2991/iccte-17.2017.9
ID  - Ma2017/07
ER  -