Measurement of Construction Noise under Site Preparation in Academic Environment: A Case Study of Noise from The Pile Driver
Keywords:
Building construction, health risk, smart phone, sound level applicationAbstract
The purpose of this study was to measure the sound level from construction activities by using mobile applications to consider health risk of people in the university. The mobile phone applications on both iOS and Android based were applied as screening tools for measuring sound level by following the national standard sound level measurement guideline at 50, 80, 120, 160, and 240 m from the source. Comparison between applications and standard sound level meter (SLM) was conducted. The results indicated that the maximum hourly average sound level without background noise under construction preparation by pile-driving machine was found at 80 m in the west 77.70±0.39 dB(A) by iOS platform and 67.29±0.53 dB(A) by Android based application. The difference between the SLM and iOS application was 20.69±2.55 dB(A) and Android application was -9.15±5.15 dB(A). It was found that the people at 80 m away in west direction could be at risk of loud noise from construction. The factors influenced on sound level were distance and noise reflection. The sound level was decreased by distance from 80 m to 160 m and 240 m, respectively. Reflection of building enhanced noise level at 80 m in the west so it was louder than at 50 m away in the east. The results were over the acceptable value when compare with the SLM so they could be applied as screening tool.
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