Analisis Efektifitas Ketinggian Bangunan Perredam Bising untuk Meredam Kebisingan Lalu Lintas
The high health risks caused by intense noise generated by road traffic prompted the
government to start implementing various policies to deal with this noise. One of government policy is the
use of Noise Reducing Building (BPB). This study aims to analyze the influence of BPB altitude to its
capability of traffic noise damping produced to obtain the optimal height. The optimal limit in question is
the ability to reduce the noise level so that it is below the allowable noise level. The method used in
measuring the effect of altitude on the capability of BPB damping on this study is by direct measurement.
Noise data is measured with a Sound Level Meter for 10 hours following a L10 measurement system.
Measurements and data recording are performed with barrier of BPB with a height of 2, 2.5 and 3 meters
respectively. Measurements are also done without BPB to know the basic noise. To reduce the influence
factor of day-based trip routine, noise measurement is done every Monday. From the data obtained
during 10 hours for 4 days then data compilation being conducted and calculated to find the average
noise level with log formulas, and then transformed into graph form to see the level of significance. From
the analysis it is found that the most effective possible BPB height is about 2.3 meters which can reduce
noise with the lowest value.