Abstract
Research on the distribution of noise level in settlement near the KRL (Electric Train) railway is conducted in Tebet Timur Dalam settlement, DKI Jakarta to determine if the Threshold Value (NAB) of noise in the settlement is by standards or not. If not, then a recommendation is needed to reduce the noise . The data are collected in two weeks, during which the grid method is used to determine the coordinates. Noise level data collection at each point is carried out within 24 hours of six time periods. The mapping of the distribution of noise is conducted using the Surfer application with kriging method, with data in the form of coordinates and measurement results. The coordinates are obtained using an android application called UTM Geo Map. The measurement results show the highest LSM noise level is at a distance of 20 meters in Gang C of 80.5 dBA, while the lowest LSM data result is at a distance of 80 meters from the noise source at Gang B of 54.2 dBA The recommended safe distance to establish a settlement is above 80 meters because it is according to the NAB. Another recommendation to reduce noise is to provide a barrier in the form of trees or concrete walls that limit the edge of the railway at a minimum distance as far as five meters from the residential area.
Highlights
Kereta Rel Listrik (KRL) merupakan jalur tarnsportasi di Jakarta yang memiliki jalur dan jam operasional tinggi, tidak heran apabila jalur perlintasannya sangat padat, setiap lima belas menit KRL melintas
railway is conducted in Tebet Timur Dalam settlement
DKI Jakarta to determine if the Threshold Value
Summary
Abstrak Penelitian mengenai sebaran tingkat kebisingan di permukiman yang berada di dekat jalur rel KRL (kereta Rel Listrik), dilakukan di permukiman Tebet Timur Dalam, DKI Jakarta, guna mengetahui Nilai Ambang Batas (NAB) kebisingan di permukiman tersebut sudah sesuai dengan standard atau belum. Waktu pengambilan data adalah selama dua minggu dengan menggunakan metode grid dalam menentukan titik koordinat. Pengambilan data tingkat kebisingan pada tiap titik dilakukan dalam kurun waktu 24 Jam sebanyak enam waktu. Pemetaan sebaran kebisingan menggunakan aplikasi Surfer dengan metode kriging dan data berupa titik koordinat dan nilai hasil pengukuran. Jarak aman yang direkomendasikan untuk mendirikan permukiman adalah diatas 80 meter karena sesuai dengan NAB. Rekomendasi lainnya guna meredam kebisingan yaitu dengan memberi penghalang berupa pohon atau tembok beton yang membatasi pinggir rel kereta pada jarak minimal sejauh lima meter dengan daerah permukiman warga.
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