An experimental study on combined effects of high-speed railway noise and vibrations on activity disturbances
An experimental study on combined effects of high-speed railway noise and vibrations on activity disturbances
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发表时间：
2016
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通讯作者：
T. Morihara;S. Yokoshima;Y. Matsumoto
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作者：
T. Morihara;S. Yokoshima;Y. Matsumoto
本实验研究旨在探讨高速铁路（新干线）的噪音和振动对活动干扰的综合影响。参与者10名女性和10名男性（18-22岁），听力正常。在北陆新干线附近记录了新干线的噪音和振动作为刺激。音频刺激的LAmax值分别为50、60和70 dB，而振动刺激有三种垂直振动类型（无、中、高）。参与者在进行30秒的活动任务（阅读和思考）时，暴露在这些组合刺激下。结果表明，被试在不同的振动刺激下对振动认知的评价存在显著差异。相比之下，在思考任务中，在60和70 dB条件下，我们观察到无振动和中等振动条件之间没有差异。在阅读任务中，在50和60 dB条件下，无振动条件和高振动条件下，在思考任务中，在50 dB条件下，无振动条件和中高振动条件下，对活动干扰的评价存在显著差异。
This experimental study was carried out to examine the combined effects of high-speed (Shinkansen) railway noise and vibrations on activity disturbances. Participants were ten women and ten men (18–22 years) with normal hearing ability. The Shinkansen railway noise and vibrations used as stimuli were recorded near the Hokuriku Shinkansen railway. The audio stimuli had LAmax values of 50, 60, and 70 dB, whereas the vibration stimuli had three types (none, intermediate, and high) of vertical vibrations. The participants were exposed to these combined stimuli while they engaged in 30-second activity tasks (reading and thinking). The results indicated that there were significant differences in subjects’ evaluations of vibration cognition between all of the vibration stimuli during the reading task. In contrast, during the thinking task, we observed no differences between the none and intermediate vibration conditions in the 60 and 70 dB conditions. We observed significant differences in evaluations of activity disturbance between the none and high vibration conditions in the 50 and 60 dB conditions during the reading task and between the none and intermediate or high vibration conditions in the 50 dB condition during the thinking task.