Measurement data for "Experimental study of prediction model of insertion loss of buildings for elevated noise source"

This is a dataset of insertion loss of buildings from scale model experiment for publication: Q. Wang, K. Anai, H. Yano, S. Sakamoto, "Experimental study of prediction model of insertion loss of buildings for elevated noise source", Acoustical Science and Technology, e25.73 (2026), doi: 10.1250/ast.e25.73. This dataset contains measurement data of insertion loss of buildings (IL) from a scale model experiment performed in a hemi-anechoic chamber. The insertion loss of buildings characterizes the noise attenuation level caused by buildings compared to the case without buildings, which refers to the case of propagation in hemi-free field. The experimental setup is described in Sect. 2 of the publication, and the procedures for calculating IL is described in Sect. 3.1 of the publication. The dataset is intepreted in the following manner. First, each .csv file contains IL data regarding a specific receiver microphone position from one of the five building patterns [(a-e)] and one specific height of buildings $H$ and a specific height of noise source $h_\mathrm{s}$ (as indicated in the file name). Each file contains an numeric array of 6 rows and 85 columns. Each of the 6 rows are the data for one type of single-point IL $\mathit{\Delta}L_{\mathrm{B,P}}$. Rows 1-5 contain single-point IL at one octave frequency band from 125 Hz to 2 kHz (data at 2 kHz only contains data within 2/3 octave frequency band due to limited frequency range of measurement data), $\mathit{\Delta}L_{\mathrm{B,P},f}$. Row 6 contains overall levels of single-point IL regarding the road traffic noise (RTN), $\mathit{\Delta}L_{\mathrm{B,P,RTN}}$. The 85 columns of data are the single-point IL at different $\mathrm{X}$ positions of the noise source along the 100 meter simulated road. Note that, some cells are intentionally left empty as they correspond to points with low signal-to-noise ratio regarding the measurement conditions, so they are discarded both in the dataset here and the analyses in the main text.本数据集为配套发表论文的建筑插入损失（insertion loss, IL）缩尺模型实验数据，相关论文为Q. Wang、K. Anai、H. Yano、S. Sakamoto发表于《Acoustical Science and Technology》的"Experimental study of prediction model of insertion loss of buildings for elevated noise source"，文章编号e25.73 (2026)，DOI: 10.1250/ast.e25.73。 本数据集包含在半消声室（hemi-anechoic chamber）中开展的缩尺模型实验测得的建筑插入损失数据。建筑插入损失用于表征相较于无建筑的半自由场传播场景，建筑带来的噪声衰减水平。实验装置说明见该论文第2节，插入损失的计算步骤见论文第3.1节。 本数据集的解读方式如下：每个.csv文件均包含对应特定接收传声器位置的插入损失数据，具体条件涵盖五种建筑布局[(a-e)]之一、特定建筑高度$H$与特定噪声源高度$h_mathrm{s}$，文件名中已标注上述信息。每个文件内含6行85列的数值数组，其中6行分别对应一类单点插入损失$mathit{Delta}L_{mathrm{B,P}}$：第1至5行分别为125 Hz至2 kHz倍频程频带（2 kHz频段因测量频率范围限制，仅包含三分之一倍频程频带（2/3 octave frequency band）数据）下的单点插入损失$mathit{Delta}L_{mathrm{B,P},f}$；第6行对应道路交通噪声（road traffic noise, RTN）下的单点插入损失总级$mathit{Delta}L_{mathrm{B,P,RTN}}$。85列数据则为噪声源沿100米模拟道路的不同$mathrm{X}$位置处的单点插入损失。需注意，部分单元格因对应测量条件下信噪比（signal-to-noise ratio, SNR）较低而被预留为空，本数据集与正文分析中均已剔除这些无效数据。