公路交通噪声源强预测模型研究进展  

Research advance review of the highway traffic noise source and its intensity evaluation model

作　　者：丁真真[1,2] 赵剑强[1] 陈莹[1] 胡博[1] 

机构地区：[1]长安大学环境科学与工程学院,西安710064 [2]西安市环境保护科学研究院,西安710002

出　　处：《安全与环境学报》2014年第4期280-284,共5页Journal of Safety and Environment

摘　　要：随着我国经济的快速发展,汽车已经成为主要的日常交通方式,由此产生的交通噪声及其对周边环境造成的不利影响日益受到国内外的广泛关注。在综述国内外噪声预测模型中源强预测模型发展历程的基础上,对常用的噪声预测模型中的源强预测模型包括FHWA、CoRTN 88、RLS-90、MITHRE、StL-86、ASJ-1993以及我国所用模型的特点、预测方法和使用范围进行了对比分析,指出了现有噪声预测模型存在的问题和今后的发展方向。The paper is dedicated to a research advance review of the highway traffic noise source and its intensity prediction model. As is known, with the fast development of China＇s economy, all kinds of car vehicles have become a major tool of daily living, particularly in the urban life. Traffic noise and its adverse impacts on the surround- ing environment attract ever-increasing attention both from home and from around the world. Here we would like to review traffic noise evaluation models, which were made based on the constant driving speed experiments in the 1950s, in which a single vehicle sound pressure level can be taken as noise unit for assessment on the road- side. The estimated levels were then expressed as functions of vehicle type and speed, and with zero acceleration. Meanwhile, algorithm models were used for predicting the equivalent continuous level and peak level at a certain distance from the roadside were also developed to evaluate the source intensity of the traffic noise. Still later source intensity models were developed to evaluate the equivalent continuous level under the interrupted and varying flow conditions. Most of such evaluation models assumed that the traffic noise is made from the single point source, while some others took it as a short line source; and still others believed they were made with different spectra. Based on a review on the development of the intensity assessment models of the traffic noise, we have conducted a in-depth comparative analysis a- mong the commonly used models, including FHWA, CoRTN 88, RLS- 90, MITHRE, StL - 86, ASJ - 1993 and that were used in China, from their characteristic features, the estimation methods, and the ranges for application. The current problems with traffic noise evaluation may include （ 1 ） the intensity assessment of traffie noise, which only includes the vehicle types and speeds, but fails to reflect the effects of traffic flow, the road building material, slopes, road width, and the surrounding conditions on the assessment results

关 键 词：环境工程学 声学 公路 源强 预测模型 

分 类 号：X593[环境科学与工程—环境工程]