층간소음 번역(영어 번역본)4.3 Method of measuring the outdoor noise level in the use testing stage The outdoor noise level is measured after the completion of the building for the 5th floor and lower, and the 6th floor and higher. The microphone will be installed 1m from the outer wall, and 1.2~1.5m from the floor. For the 5th floor and lower measurements will be taken on the first floor and the fifth floor at the same time. For the 6th floor and higher, measurements must be taken every other floor on a total of three floors simultaneously including the floor whose outdoor noise level is the highest. Measurements will be taken during daytime (06:00~22:00) and nighttime (22:00~06:00). During daytime equivalent noise levels must be measured at each measurement location more than 4 times at an interval exceeding 2 hours for five minutes each time including the morning rush hours (07:00~09:00) and the evening rush hours (17:00~ 20:00), and the arithmetic mean will be obtained. During nighttime equivalent noise levels will be measured at each measurement location more than two times at an interval exceeding two hours for five minutes each time including the time slot of 22:00~24:00, and the arithmetic mean will be obtained. Also, measurements must be taken on days when daily traffic volume is the greatest. 4.4 Method of measuring the indoor noise level in the use testing stage The indoor noise level must be measured simultaneously every other floor on a total of three floors including the floor whose predicted indoor noise level was the highest. If the room facing the road is the living room, three or more measurement points 1m from the opening must be evenly distributed for measurement. The height must be 1.2~1.5m from the floor. If the room facing the road is a bedroom, 4 or more measurement points must be evenly distributed inside the room for simultaneous measurement. The method of selecting measurement time slots is the same as that for the outdoor noise level measurement method. As 3 floors must be measured at the same time, at least 12 microphones will be required, so the quantity of measurement equipment can be said to have increased. |