ANALISA PENGARUH KEBERADAAN BANGUNAN TERHADAP TINGKAT KEBISINGAN DI SEPANJANG JALAN RAYA PEKANBARU-BANGKINANG

Abstract

The influence of the existence of buildings as a barrier on the noiselevel alongPekanbaru-Bangkinang highway had been studied. A source of noise in this researchwas generated by vechicles passing through along the highway. A tool used to record the noise level was Sound Level Meter (SLM). There were two SLMs used in
this measurement, where the first SLM wassituated in the back of the building and the
second SLM waslocated parallel to the first SLM along the highway without any
buildings.There were four types of buildings used as a noise barrier namely building
made of concrete, briks, semi-permanent, and wood. The resultsof the measurement
showed that thehighest noise absorption of about 18.15 %was due to the building
made from concrete and followed by bricks, semi-permanent, and woodtheir absorption
value of 14.36 %, 13.60 %, and 12.15 % respectively. The highestvalue of absorption of
noise by concrete building was due to small space volume per percentage of noise
absorption compared to those of other buildings. The results of this research were
compared to those of Maekawa and ISO9613. The noise absorption in this research was
a little bit lower compared to Maekawa calculation and higher than those for ISO9613
with the average error percentage of about 3.35 % and 10.56 % respectively. The
measurement of noise level as a function of time for one day started from 07.00-18.00
showed that the noise level profile had two peaks that was at 12.00-13.00 and 16.00-
18.00 with the value respectively of 68.89 dBA and 69.20 dBA. The valueof the noise
level were also studied as a function of distance and its value declinedvery
significantlyfrom 71.07 dBA to 61.47 dBA when the measurement away from the noise
source.