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All Journal BENTANG : Jurnal Teoritis dan Terapan Bidang Rekayasa Sipil
Budi Susetyo
Program Studi Teknik Sipil; Universitas Mercu Buana; Jl. Meruya Selatan, Kebon Jeruk – Jakarta Barat, Indonesia
Civil Engineering, Building, Construction & Architecture Transportation

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Optimasi Biaya Investasi Infrastruktur Hijau Dengan Metode Rekayasa Nilai Pada Sistem Penyediaan Air Minum Kabupaten Tangerang Angga Erlangga; Budi Susetyo
Bentang : Jurnal Teoritis dan Terapan Bidang Rekayasa Sipil Vol 14 No 1 (2026): BENTANG Jurnal Teoritis dan Terapan Bidang Rekayasa Sipil (January 2026)
Publisher : Universitas Islam 45

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33558/bentang.v14i1.11060

Abstract

The government prioritizes enhancing the Water Supply System (SPAM) to meet public needs, targeting clean water services 98.49% coverage in Tangerang Regency by 2031. To achieve this target, the strategy of Perusahaan Umum Daerah Air Minum Tangerang Regency (PERUMDAM TKR) involves expanding transmission and distribution networks, potentially causing adverse environmental impacts. This study identifies variables influencing cost optimization through Green Infrastructure implementation in SPAM, focusing on the leading distribution pipeline network. A quantitative method using SEM-PLS analyzes questionnaire data from experts. Results indicate that green design affect cost performance with system energy design maturity being a significant indicator. A case study in Tangerang Regency employs Value Engineering (Sudiarsa, 2018) and Life Cycle Cost Analysis for investment cost optimization through Green Infrastructure. VE leads to a 9.91% cost increase, exceeding the 7% efficiency standard. LCCA shows project feasibility with NPV > 0 (Rp77,321,059,290.18), IRR of 27.73% (exceeding the 6.95% discount factor), and a 3.05-year payback period. Sensitivity analysis reveals that a 10% rise in total cost and a 40% fall in total revenue render the project unfeasible (NPV < 0).
Co-Authors Angga Erlangga