为中等城市开发城市交通噪声模型:坎普尔案例研究

IF 1 4区 工程技术 Q4 INSTRUMENTS & INSTRUMENTATION
MAPAN Pub Date : 2023-12-06 DOI:10.1007/s12647-023-00693-3
Saurabh Upadhyay, Manoranjan Parida, Brind Kumar, Praveen Kumar
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引用次数: 0

摘要

交通噪音正在成为印度城市面临的主要挑战。它影响人类的健康,带来烦扰和其他主要健康问题。本研究旨在开发适用于中等城市的交通噪声模型。在自由流动的条件下,通过使用声级计,从距离附近车道中心线 7.5 米的参考距离出发,对车辆噪声和单个车辆的现场速度进行研究,以制定参考能量平均排放水平(REMEL)。该城市交通噪声模型适用于不同的地理区域,并取决于车辆类别和在用车辆的特征。随后,进行了街区中段研究,以测量不同车辆类别的交通噪声 Leq(以 dB(A)为单位)、平均车速和交通流量。在开发交通噪声预测模型时,需要考虑道路的实际状况、车行道宽度、人行道宽度、中央分隔带大小、车道数量和地面覆盖物(硬质或软质)。我们利用 REMEL 模型和不同的调整系数开发了一个改进的交通噪声预测模型。随后,在坎普尔市所有选定地点的测量时段,对预测和观测到的 Leq(以 dB(A)为单位)进行了相关性分析,通过相关系数 R2 = 0.76 来检查模型的适用性,预测和观测到的 Leq 的平均绝对百分比误差在 0.8 至 1.2% 之间。利用该校准模型,绘制了一张噪声地图,以确定市内不同时间段的噪声热点。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Development of Urban Traffic Noise Model for a Mid-Sized City: A Case Study of Kanpur

Development of Urban Traffic Noise Model for a Mid-Sized City: A Case Study of Kanpur

Traffic noise is emerging as major challenge for cities in India. It affects human health in terms of annoyance and other major health problems. This study aims to develop a traffic noise model for mid-sized cities. Vehicle noise and spot speed of individual vehicles were studied to develop a reference energy mean emission level (REMEL) by using the sound level meter from a reference distance of 7.5 m from the centerline of a nearby lane under free flow condition. This urban traffic noise model is specific to different geographical regions and depends on vehicle categories and characteristics of in use vehicles. Subsequently, mid-block studies were conducted for measuring traffic noise Leq (in dB(A)), average speed, and traffic volumes of different vehicle categories. To develop the traffic noise prediction model, physical condition of the road, carriageway width, width of the footpath, median size, number of lanes, and ground cover (hard or soft) need to be accounted for. A modified traffic noise prediction model has been developed using REMEL models and different adjustment factors. Subsequently, the correlation analysis was performed between predicted and observed Leq (in dB(A)) to check the model fitness by correlation coefficient R2 = 0.76 and mean absolute percentage error is ranged from 0.8 to 1.2% for the predicted and observed Leq at all the selected sites of measurement periods for the Kanpur city. With this calibrated model, a noise map has been developed to identify noise hotspots during different time intervals within the city.

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来源期刊
MAPAN
MAPAN 工程技术-物理:应用
CiteScore
2.30
自引率
20.00%
发文量
91
审稿时长
3 months
期刊介绍: MAPAN-Journal Metrology Society of India is a quarterly publication. It is exclusively devoted to Metrology (Scientific, Industrial or Legal). It has been fulfilling an important need of Metrologists and particularly of quality practitioners by publishing exclusive articles on scientific, industrial and legal metrology. The journal publishes research communication or technical articles of current interest in measurement science; original work, tutorial or survey papers in any metrology related area; reviews and analytical studies in metrology; case studies on reliability, uncertainty in measurements; and reports and results of intercomparison and proficiency testing.
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