基于信号灯和主干道优先控制交叉口车辆随机概率分布的改进型噪声预测模型

IF 3.4 2区物理与天体物理 Q1 ACOUSTICS

Applied Acoustics Pub Date : 2024-10-05 DOI:10.1016/j.apacoust.2024.110330

Xin Deng, Zhaolang Wu, Shiyu Wang, Junshan Lin, Haibo Wang

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引用次数: 0

摘要

针对不同类型交叉口的各种交通特性造成的噪声预测困难，提出了一种基于车辆随机概率分布的修正噪声预测模型。利用蒙特卡罗模拟生成具体的车辆位置，假设时间车距为布尔分布，根据能量叠加原理计算交通噪声。经过验证，该模型在信号灯控制和主干道优先控制交叉口的 Leq 平均绝对误差为 1.4 dB(A)。介绍了两类交叉口的应用。两种交叉口模式的噪声影响不同，信号灯控制交叉口的噪声值降低了 2.1 分贝，而优先控制交叉口的噪声值增加了 0.3 分贝，车速从 30 到 50 公里/小时不等。在信号灯控制的交叉路口，车速越高，各流量比的噪声值越集中，而优先控制交叉路口的趋势则相反。双轴流量比、车速和接收器位置对两种交叉口模式的噪声影响起着不同的作用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

A modified noise prediction model based on vehicles’ random probability distribution for signalized and main road priority-controlled intersections

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A modified noise prediction model based on vehicles’ random probability distribution for signalized and main road priority-controlled intersections

A modified noise prediction model based on vehicles’ random probability distribution is proposed to address the difficulty of noise prediction caused by various traffic characteristics of different types of intersections. Monte Carlo simulation is used to generate specific vehicle locations with the assumption of time headway is Burr distribution, and traffic noise can be calculated based on the energy superposition principle. The model has been validated as the average absolute error for L_eq of 1.4 dB(A) at both signalized and main road priority-controlled intersections. Applications of two types of intersections are presented. Different noise impacts are indicated in the two intersection modes, as the signalized intersection reduces noise value by 2.1 dB compared with a 0.3 dB increase at priority-controlled intersections with speeds varying from 30 to 50 km/h. Higher speeds result in more concentrated noise values across flow ratios at signalized intersections, while the opposite trend is observed at priority-controlled intersections. Flow ratios of two axes, speed, and receiver locations play different roles in the noise effect of two intersection modes.

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来源期刊

Applied Acoustics 物理-声学

CiteScore

7.40

自引率

11.80%

发文量

618

审稿时长

7.5 months

期刊介绍： Since its launch in 1968, Applied Acoustics has been publishing high quality research papers providing state-of-the-art coverage of research findings for engineers and scientists involved in applications of acoustics in the widest sense. Applied Acoustics looks not only at recent developments in the understanding of acoustics but also at ways of exploiting that understanding. The Journal aims to encourage the exchange of practical experience through publication and in so doing creates a fund of technological information that can be used for solving related problems. The presentation of information in graphical or tabular form is especially encouraged. If a report of a mathematical development is a necessary part of a paper it is important to ensure that it is there only as an integral part of a practical solution to a problem and is supported by data. Applied Acoustics encourages the exchange of practical experience in the following ways: • Complete Papers • Short Technical Notes • Review Articles; and thereby provides a wealth of technological information that can be used to solve related problems. Manuscripts that address all fields of applications of acoustics ranging from medicine and NDT to the environment and buildings are welcome.