Agarwal Sheetal, Swami Bajrang L, Gupta Akhilendra Bhushan
Department of Civil Engineering, Malaviya National Institute of Technology, Jaipur, India.
Noise Health. 2009 Oct-Dec;11(45):189-93. doi: 10.4103/1463-1741.56211.
The objective of this study is to develop an empirical noise prediction model for the evaluation of equivalent noise levels (Leq) under interrupted traffic flow conditions. A new factor tendency to blow horn (AH) was introduced in the conventional federal highway administrative noise prediction (FHWA) model and a comparative study was made between FHWA and modified FHWA models to evaluate the best suitability of the model. Monitoring and modeling of Leq were carried out at four selected intersections of Jaipur city. After comparison of the results, it was found that the modified FHWA model could be satisfactorily applied for Indian conditions as it gives acceptable results with a deviation of +/-3 dB (A). In addition, statistical analysis of the data comprising measured and estimated values shows a good agreement. Hence, the modified FHWA traffic noise prediction model can be applied to the cities having similar traffic conditions as in Jaipur city.
本研究的目的是开发一种经验噪声预测模型，用于评估间断交通流条件下的等效噪声级（Leq）。在传统的联邦公路管理局噪声预测（FHWA）模型中引入了一个新的因素——按喇叭倾向（AH），并对FHWA模型和改进后的FHWA模型进行了对比研究，以评估模型的最佳适用性。在斋浦尔市四个选定的十字路口进行了Leq的监测和建模。结果比较后发现，改进后的FHWA模型能够令人满意地应用于印度的情况，因为它给出的结果可接受，偏差为±3 dB（A）。此外，对包含测量值和估计值的数据进行的统计分析显示出良好的一致性。因此，改进后的FHWA交通噪声预测模型可应用于与斋浦尔市交通条件相似的城市。
