CAJ | 학술논문

通过在4城市对132条道路进行了道路交通噪声测点高度试验，系统分析了测点高度从手工监测的1.2 m向自动监测的4.5 m转化后，在不同道路情况对道路交通噪声监测数据的影响。结果表明，测点高度提高后监测结果变化在±3 dB( A)以内。待测道路的车道数和测点与机动车道的距离是其主要影响因素。对两测点高度进行对比，4.5 m高度噪声值随水平距离增加衰减较小，测量结果更稳定。
통과재4성시대132조도로진행료도로교통조성측점고도시험，계통분석료측점고도종수공감측적1.2 m향자동감측적4.5 m전화후，재불동도로정황대도로교통조성감측수거적영향。결과표명，측점고도제고후감측결과변화재±3 dB( A)이내。대측도로적차도수화측점여궤동차도적거리시기주요영향인소。대량측점고도진행대비，4.5 m고도조성치수수평거리증가쇠감교소，측량결과경은정。
With the conversion of road traffic noise monitoring from manual to automatic, the measuring-point height increased from 1. 2 to 4. 5 m. This research has experimented on 132 roads in four cities, systematically analyzed the influence of raising measuring-point height on noise monitoring data in various road conditions. The results show that noise monitoring results change within ± 3 dB ( A) after raising measuring-point height. The number of lanes and the distance between measuring points and motor vehicle lanes are the main influencing factors. Comparing the two measuring-point heights, at 4. 5 m the noise lever attenuates more slowly with horizontal distances, thus the measurement results are more stable.