Analisis dan Perbaikan Penggunaan APD pada Pekerja Pemilah Sampah Manual Berbasis RCA Level 4 dan Fuzzy FTA
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https://doi.org/10.56211/blendsains.v5i2.2081Keywords:
Alat Pelindung Diri (APD/PPE); Fuzzy Fault Tree Analysis (FFTA); Human Factors Analysis and Classification System (HFACS); Root Cause Analysis (RCA); Triangular Fuzzy Numbers (TFN)
Abstract
Ketidakpatuhan penggunaan Alat Pelindung Diri (APD) di area pemilahan sampah manual Tempat Pembuangan Akhir (TPA) memicu risiko kecelakaan kerja dan penyakit akibat kerja yang tinggi. Penelitian ini bertujuan mengkuantifikasi risiko serta mengidentifikasi akar masalah sistemik ketidakpatuhan APD massal (±50% pekerja) melalui pendekatan hibrida Root Cause Analysis (RCA) Level 4, Human Factors Analysis and Classification System (HFACS), dan Fuzzy Fault Tree Analysis (FFTA). Data faktual diaudit melalui triangulasi lima jenis data dan disaring menggunakan KNOT Chart, dengan jumlah responden 30 pekerja (50% dari populasi), dan 4 orang pakar dari bidang K3 dan operasional. Struktur kausalitas diklasifikasikan ke dalam empat tingkatan HFACS dan dikuantifikasi menggunakan Triangular Fuzzy Numbers (TFN) berbasis konsensus pakar. Hasil kuantifikasi menunjukkan nilai probabilitas terjadinya ketidakpatuhan massal (Top Event) sebesar P(TE) = 5,69%. Akar masalah paling kritis teridentifikasi pada level Organizational Influences (BE4: sistem pengadaan kaku tahunan tanpa buffer stock, FPV = 0.058) dan Unsafe Supervision (BE7: ketiadaan SOP Progressive Disciplinary System, FPV = 0.048). Berdasarkan temuan tersebut, dirumuskan matriks rekomendasi terintegrasi berbasis Hierarchy of Controls dan CAPA 4-Level untuk mentransformasi sistem pengawasan serta logistik K3 secara permanen dan berkelanjutan.
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