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Development of traffic noise prediction model for major arterial roads of tier-II city of India (Surat) using artificial neural network 基于人工神经网络的印度苏拉特二线城市主干道交通噪声预测模型的建立
IF 2.8 Q1 Social Sciences Pub Date : 2021-01-01 DOI: 10.1515/noise-2021-0013
Ramesh B. Ranpise, B. Tandel, Vivek A. Singh
Abstract In the issue of expanding noise levels the world over, road traffic noise is main contributor. The investigation of street traffic noise in urban communities is a significant issue. Ample opportunity has already passed to understand the significance of noise appraisal through prediction models with the goal that assurance against street traffic noise can be actualized. Noise predictions models are utilized in an increasing range of decision-making applications. This study’s main objective is to assess ambient noise levels at major arterial roads of Surat city, compare these with prescribed standards, and develop a noise prediction model for arterial roads using an Artificial Neural Network. The feed-forward back propagation method has been used to train the model. Models have been developed using the data of three roads separately, and one final model has also been developed using the data of all three roads. Among the prediction in three arterial roads, the predicted output result from the model of Adajan-Rander showed a better correlation with a mean squared error (MSE) of 0.789 and R2 value of 0.707. But with the combined model, there is a slight deterioration in mean squared value (MSE) 1.550, with R2 not getting changed much significantly, i.e., 0.755. However, the combined model’s prediction can be adopted due to the variety of data used in its training.
摘要在世界范围内噪声水平不断扩大的问题上,道路交通噪声是主要因素。城市社区道路交通噪声调查是一个重要课题。通过预测模型来理解噪声评估的重要性,以实现对街道交通噪声的保证,已经有了充分的机会。噪声预测模型被用于越来越多的决策应用中。本研究的主要目的是评估苏拉特市主要干线道路的环境噪声水平,将其与规定标准进行比较,并使用人工神经网络开发干线道路的噪声预测模型。使用前馈-反向传播方法来训练模型。分别使用三条道路的数据开发了模型,还使用所有三条道路数据开发了一个最终模型。在三条主干道的预测中,Adajan Rander模型的预测输出结果显示出更好的相关性,均方误差(MSE)为0.789,R2值为0.707。但对于组合模型,均方值(MSE)1.550略有恶化,R2变化不大,即0.755。然而,由于训练中使用的数据种类繁多,可以采用组合模型的预测。
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引用次数: 11
GIS-based mapping of noise from mechanized minerals ore processing industry 基于gis的机械化选矿噪声制图
IF 2.8 Q1 Social Sciences Pub Date : 2021-01-01 DOI: 10.1515/noise-2021-0001
Arif Susanto, D. Setyawan, Firman Setiabudi, Y. M. Savira, A. Listiarini, E. K. Putro, A. F. Muhamad, J. C. Wilmot, D. Zulfakar, Prayoga Kara, Iting Shofwati, Sodikin Sodikin, M. Tejamaya
Abstract Monitoring workers’ exposure to occupational noise is essential, especially in industrial areas, to protect their health. Therefore, it is necessary to collect information on noise emitted by machines in industries. This research aims to map the noise from mechanized mineral ore industry using the kriging interpolation method, and ArcGIS 10.5.1 to spatially process and analyze data. The experimental calculation result of the semivariogram showed a 0.83 range value, with an essential parameter of 1.75 sill and a spherical total theoretical model. The result shows that the main machines with the highest power consumption and the Leq value are located in the southwest position of the sampled areas with a noise map-projected to assess the workers’ noise exposure level. In conclusion, the study found that the highest noise level was generated ranged from 88 to 97 dBA and contributed to the whole sound pressure level at certain positions.
摘要监测工人接触职业噪声的情况对保护他们的健康至关重要,尤其是在工业区。因此,有必要收集工业中机器发出的噪音信息。本研究旨在利用克里格插值方法绘制机械化矿产工业噪声图,并利用ArcGIS 10.5.1对数据进行空间处理和分析。半变差函数的实验计算结果显示,其范围值为0.83,基本参数为1.75,理论模型为球形总模型。结果表明,功耗和Leq值最高的主要机器位于采样区域的西南位置,并投影噪声图来评估工人的噪声暴露水平。总之,研究发现,产生的最高噪声水平在88至97 dBA之间,并对某些位置的整个声压水平有贡献。
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引用次数: 5
On the multipath effects due to wall reflections for wave reception in a corner 拐角波接收中壁面反射引起的多径效应
IF 2.8 Q1 Social Sciences Pub Date : 2021-01-01 DOI: 10.1515/noise-2021-0004
L. Campos, Manuel José dos Santos Silva, Agostinho Rui Alves da Fonseca
Abstract Multipath effects occur when receiving a wave near a corner, for example, the noise of an helicopter or an aircraft or a drone or other forms of urban air mobility near a building, or a telecommunications receiver antenna near an obstacle. The total signal received in a corner consists of four parts: (i) a direct signal from source to observer; (ii) a second signal reflected on the ground; (iii) a third signal reflected on the wall; (iv) a fourth signal reflected from both wall and ground. The problem is solved in two-dimensions to specify the total signal, whose ratio to the direct signal specifies the multipath factor. The amplitude and phase of the multipath factor are plotted as functions of the frequency over the audible range, for various relative positions of observer and source, and for several combinations of the reflection coefficients of the ground and wall. It is shown that the received signal consists of a double series of spectral bands, in other words: (i) the interference effects lead to spectral bands with peaks and zeros; (ii) the successive peaks also go through zeros and “peaks of the peaks”. The results apply not only to sound, but also to other waves, e.g., electromagnetic waves using the corresponding frequency band and reflection factors.
当在一个角落附近接收到波时,例如,直升机或飞机或无人机或其他形式的城市空中机动性在建筑物附近的噪音,或在障碍物附近的电信接收器天线时,会发生多路径效应。角点接收到的总信号由四部分组成:(i)从信号源到观测者的直接信号;(ii)地面反射的第二个信号;(iii)墙上反射的第三个信号;(iv)从墙壁和地面反射的第四个信号。该问题在二维空间中求解,以指定总信号,其与直接信号的比值指定多径因子。对于观察者和源的不同相对位置,以及地面和墙壁反射系数的几种组合,将多径因子的幅度和相位绘制为可听范围内频率的函数。结果表明,接收到的信号由双谱带序列组成,即:(1)干扰效应导致谱带有峰有零;(ii)连续的峰也经过零点和“峰中的峰”。结果不仅适用于声音,也适用于其他波,例如使用相应频带和反射因子的电磁波。
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引用次数: 3
Innovative techniques for the improvement of industrial noise sources identification by beamforming 改进波束形成工业噪声源识别的创新技术
IF 2.8 Q1 Social Sciences Pub Date : 2021-01-01 DOI: 10.1515/noise-2021-0010
G. Baldinelli, F. Bianchi, D. Costarelli, F. D’Alessandro, Flavio Scrucca, Marco Seracini, G. Vinti
Abstract An innovative technique based on beamforming is implemented, at the aim of detecting the distances from the observer and the relative positions among the noise sources themselves in multisource noise scenarios. By means of preliminary activities to assess the optical camera focal length and stereoscopic measurements followed by image processing, the geometric information in the source-microphone direction is retrieved, a parameter generally missed in classic beamforming applications. A corollary of the method consists of the possibility of obtaining also the distance among different noise sources which could be present in a multisource environment. A loss of precision is found when the effect of the high acoustic reflectivity ground interferes with the noise source.
摘要提出了一种基于波束形成的多源噪声环境下噪声源与观测者之间的距离和噪声源之间的相对位置检测方法。通过初步评估光学相机焦距和立体测量,然后进行图像处理,检索了源-传声器方向的几何信息,这是经典波束形成应用中通常忽略的参数。该方法的一个推论是还可以获得在多声源环境中可能存在的不同噪声源之间的距离。当高声反射率地面干扰噪声源时,会造成精度损失。
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引用次数: 2
Effects of nightlife noise in a city center 市中心夜生活噪音的影响
IF 2.8 Q1 Social Sciences Pub Date : 2021-01-01 DOI: 10.1515/noise-2021-0018
G. Iannace, A. Trematerra, Ilaria Lombardi
Abstract The term Movida takes its name from the evening and night life of the city for their liveliness and animation. During the Movida, noise is one of the problems in the city centers due to the negative effects on the resident population. This paper reports the effects of noise due to the Movida phenomenon within the city center in southern Italy. Along the roads affected by the Movida phenomenon, the values of sound levels in dBA were measured both with fixed stations with a sound level meter and with mobile stations by wearing a noise dosimeter a participant of Movida. The measured noise levels are between 85 dBA to 90 dBA. The noise levels show that the Movida phenomenon generates disturbing conditions on the resident population with consequent conflict between club managers, patrons and residents.
摘要Movida这个词的名字来源于城市的夜生活,因为它们的活泼和生动。在Movida期间,由于对居民的负面影响,噪音是市中心的问题之一。本文报道了意大利南部城市中心莫维达现象引起的噪音影响。在受Movida现象影响的道路上,使用带声级计的固定站和佩戴Movida参与者噪声剂量计的移动站测量了以dBA为单位的声级值。测量的噪声水平在85 dBA到90 dBA之间。噪音水平表明,Movida现象给居民带来了令人不安的条件,随之而来的是俱乐部经理、顾客和居民之间的冲突。
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引用次数: 2
Noise Mapping Special Issue: The noise climate at the time of SARS-CoV-2 Virus/COVID-19 Disease 噪声测绘特刊:SARS-CoV-2病毒/新冠肺炎疾病时期的噪声气候
IF 2.8 Q1 Social Sciences Pub Date : 2021-01-01 DOI: 10.1515/noise-2021-0015
F. Asdrubali, G. Brambilla
data, observations and soundscape feedback. Two case studies gathered in the latter stage of full lockdown are presented in the paper to illustrate the changes in the environmental noise conditions relative to transport activity.
数据、观测和声景反馈。本文介绍了在全面封锁后期收集的两个案例研究,以说明环境噪声条件相对于运输活动的变化。
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引用次数: 4
The importance of changing urban scenery in the assessment of citizens’ soundscape perception. On the need for different time-related points of view 城市景观变化在评估市民声景感知中的重要性。关于不同时间相关观点的必要性
IF 2.8 Q1 Social Sciences Pub Date : 2021-01-01 DOI: 10.1515/noise-2021-0011
Jerónimo Vida Manzano, José Antonio Almagro Pastor, R. Quesada
Abstract The city of Granada is experimenting a big urban transformation, attending national and international commitments on clean air, energy efficiency and savings linked to greenhouse gases reduction strategies and sustainable development action plans. This situation constitutes a good scenario for new noise control approaches that take into account the sound variable and citizens empowering in urban design, such as the soundscape assessment of urban territory. In this way, soundscape tools have been used in Granada as a complementary method for environmental noise characterisation where traditional noise control techniques are difficult to be carried out or give limited results. After 2016 strategic noise map and in the preparation of the new noise action plan, the city came across a great acoustic challenge in a new area located outskirts characterised by growing urbanisation, still under development, the greatest legal protection because of sensitive teaching and hospital buildings and the greatest noise exposure from nearby ring-way supporting heavy traffic flow. As quiet urban areas are not characterised by the absence of noise but for the presence of the right noise, this research intended to provide the local administration with results and proposals to transform this conflict area in a pleasant or quiet urban place. Main results came from important and significative differences in morning and evening characterisation, as great differences appear in soundscape assessment over the day and along the soundwalk path, indicating the importance of time and local issues to adequately characterised citizens perception to be considered by administration in the development of strategies and effective noise control actions.
格拉纳达市正在进行一项大型城市转型试验,参与国家和国际承诺的清洁空气、能源效率和与温室气体减排战略和可持续发展行动计划相关的储蓄。这种情况为新的噪音控制方法提供了良好的前景,这些方法考虑到声音变量和公民在城市设计中的权力,例如城市领土的声景评估。通过这种方式,声景工具在格拉纳达被用作环境噪声表征的补充方法,传统的噪声控制技术难以实施或效果有限。在2016年战略噪音地图和新的噪音行动计划的准备过程中,城市在一个位于郊区的新区遇到了巨大的声学挑战,这个新区的特点是不断发展的城市化,仍在开发中,由于敏感的教学和医院建筑而受到最大的法律保护,并且附近的环线公路支持繁忙的交通流量,噪音暴露最大。由于安静的城市地区的特点不是没有噪音,而是存在适当的噪音,本研究旨在为地方行政部门提供结果和建议,将这个冲突地区转变为一个愉快或安静的城市地方。主要结果来自早上和晚上特征的重要和显著差异,因为在白天和沿着声道路径的声景观评估中出现了巨大差异,这表明时间和当地问题对于充分表征市民感知的重要性,是行政部门在制定策略和有效的噪音控制行动时考虑的因素。
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引用次数: 6
Electric vehicles diffusion: changing pavement acoustic design? 电动汽车扩散:改变路面声学设计?
IF 2.8 Q1 Social Sciences Pub Date : 2021-01-01 DOI: 10.1515/noise-2021-0023
F. Praticò, R. Fedele
Abstract Electric vehicles (EVs) are progressively entering into the current noisy urban ecosystem. Even though EVs are apparently quieter than traditional Internal Combustion Engine Vehicles (ICEVs), they have an impact on noise maps and road pavement designers should take this into consideration when designing future low-noise road pavements. Consequently, the main objective of this study is to define what are the most important aspects that road pavement designers should take into account. For this reason, in this paper, the noise emitted by EVs was analysed, considering parameters (e.g., speed and frequency) and comparisons, in order to identify crucial characteristics. Results show that EV noise could call for the improvement of pavement acoustic design due to the Acoustic Vehicle Alerting System (AVAS), high-frequency peaks, and noise vibration harshness.
摘要电动汽车正在逐步进入当前嘈杂的城市生态系统。尽管电动汽车显然比传统的内燃机车(ICEV)更安静,但它们会对噪音图产生影响,路面设计师在设计未来的低噪音路面时应考虑到这一点。因此,本研究的主要目的是确定道路路面设计师应考虑的最重要方面。因此,本文分析了电动汽车发出的噪音,考虑了参数(如速度和频率)和比较,以确定关键特性。结果表明,电动汽车噪声由于采用了声车报警系统(AVAS)、高频峰值和噪声振动的严重性,需要改进路面声学设计。
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引用次数: 5
A Soundwalk in the heart of Poblenou superblock in Barcelona: Preliminary study of the acoustic events 巴塞罗那Poblenou超级街区中心的声道:声学事件的初步研究
IF 2.8 Q1 Social Sciences Pub Date : 2021-01-01 DOI: 10.1515/noise-2021-0016
R. Alsina-Pagès, G. Ginovart-Panisello, M. Freixes, Antonella Radicchi
Abstract The Poblenou Superblock, in Barcelona, is a crucial element in the development of the new city-planning within the framework of the Superblock (Superilles) concept, whose principal aim is to recover the cultural, economic and social exchanges once produced in streets and squares. People living in urban areas need a lower traffic density, more green spaces and cleaner air in order to restore the previous uses of public spaces in their day-today lives. The urban actions conducted at this Superblock to change its uses were completed about 3 years ago, and neighbours and workers have already taken over the new spaces. In an interdisciplinary work on urban planning and acoustics, we detail the preliminary results of the acoustic events found in the recordings in a soundwalk in the heart of the Poblenou Superblock. Fifteen people evaluate and record sound fragments with the Hush City App application, in order to establish comparisons between the different points of the route, observe the spaces arranged for people and perceive the soundscape. Meanwhile, several acoustic technicians record 5-min long audios in the different stops designed for the soundwalk. The points chosen to make the recordings are very different from each other, some of them in the middle of gardens and others are on pacific streets and finally, we also wanted to include Superblock borders where the traffic is still very present. The results of our study were promising and have encouraged us to further investigate acoustics events in superblocks and include all the perceptual information provided by the Hush City App.
摘要位于巴塞罗那的Poblenou超级街区是在超级街区概念框架内制定新城市规划的关键要素,其主要目的是恢复曾经在街道和广场上产生的文化、经济和社会交流。生活在城市地区的人们需要更低的交通密度、更多的绿地和更清洁的空气,才能恢复他们日常生活中对公共空间的使用。在这个超级街区进行的改变用途的城市行动大约在3年前完成,邻居们和工人已经接管了新的空间。在一项关于城市规划和声学的跨学科研究中,我们详细介绍了在Poblenou超级街区中心的一次声音漫步录音中发现的声学事件的初步结果。15人使用Hush City应用程序评估和记录声音片段,以便在路线的不同点之间进行比较,观察为人们安排的空间并感知声景。与此同时,几位声学技术人员在为声音漫步设计的不同站点录制了5分钟长的音频。制作录音的地点彼此非常不同,其中一些位于花园中间,另一些位于太平洋街道上,最后,我们还希望包括交通仍然非常繁忙的Superblock边界。我们的研究结果很有希望,鼓励我们进一步研究超级区块中的声学事件,并包括Hush City应用程序提供的所有感知信息。
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引用次数: 3
Effects of COVID-19 outbreak on the sound environment of the city of Milan, Italy 新冠肺炎疫情对意大利米兰市声环境的影响
IF 2.8 Q1 Social Sciences Pub Date : 2021-01-01 DOI: 10.1515/noise-2021-0009
G. Zambon, C. Confalonieri, F. Angelini, R. Benocci
Abstract In this paper, we present the results of the noise monitoring in the urban area of Milan, Italy, associated with COVID-19 outbreak. In order to limit the diffusion of the pandemic, Italy adopted growing levels of restrictive measures, which ended with a 41-day lockdown from March 23 to May 3 2020. This action created a new kind of environment including a remarkable reduction of air, water and soil pollutants, together with a partial recovery of the ecosystems otherwise compromised. The presence of a permanent noise monitoring system made of 24 sensors installed in the city of Milan, allowed capturing the changes in the urban sound environment in a pre, during and post-lockdown period (months from February to June 2020). The comparison of the noise levels in terms of both absolute noise levels (Lden) and hourly noise profiles (median over lockdown period) with the same period of 2019, showed a dramatic reduction of the noise levels of approximately 6 dB. Splitting the contribution of all-non-traffic noises or anomalous noise events (ANE) from the recorded noise levels, we observe a greater contribution of the latter during the lockdown period. The use of DYNAMAP noise prediction system over an extended urban area allowed the evaluation of the population exposure to noise, estimating an increase of 14.9% and 16.4% of the exposed population to noises with Lden below 53 dB(A) and Lnight below 45 dB(A) with respect to 2019.
摘要本文介绍了新冠肺炎疫情期间意大利米兰市区噪声监测结果。为了限制疫情的传播,意大利采取了越来越严格的限制措施,最终于2020年3月23日至5月3日实施了为期41天的封锁。这一行动创造了一种新的环境,包括空气、水和土壤污染物的显著减少,以及原本受到损害的生态系统的部分恢复。米兰市安装了一个由24个传感器组成的永久性噪音监测系统,可以捕捉封锁前、封锁期间和封锁后(2020年2月至6月)城市声音环境的变化。与2019年同期相比,绝对噪声级(Lden)和每小时噪声剖面(封锁期间的中位数)的噪声级显著降低了约6 dB。从记录的噪声水平中分离出所有非交通噪声或异常噪声事件(ANE)的贡献,我们观察到后者在封锁期间的贡献更大。在扩展的城市区域使用DYNAMAP噪声预测系统可以评估暴露在噪声中的人口,估计与2019年相比,暴露在Lden低于53 dB(A)和Lnight低于45 dB(B)的噪声中的人群分别增加了14.9%和16.4%。
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引用次数: 11
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Noise Mapping
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