IRHAMNA, MUHAMMAD (2026) INTEGRASI METODE VALUE ENGINEERING DAN TEKNOLOGI BUILDING INFORMATION MODELLING SEBAGAI ALTERNATIF OPTIMALISASI DESAIN PADA PROYEK JALAN TOL. S2 thesis, Universitas Mercu Buana Jakarta.
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Abstract
The complexity of highway design in areas with extreme geotechnical conditions such as steep slopes, soft soil, and active fault zones poses a major challenge in achieving cost, time, and construction safety efficiency. Conventional design approaches are often unable to adapt dynamically to variations in geotechnical risk, resulting in budget deviations and delays in implementation. This study aims to develop an Adaptive VE-BIM GeoRisk Framework that integrates Value Engineering (VE) and Building Information Modeling (BIM 4D–5D) methods into a single data-driven decision support system. This model combines the VE Job Plan stages with geotechnical data input, 3D-5D digital simulation, and multi-criteria weighting using the Analytical Hierarchy Process (AHP) and Technique for Order Preference by Similarity to Ideal Solution (TOPSIS). The integrated workflow includes geotechnical risk assessment (GeoRisk Assessment), function analysis through FAST Diagram, evaluation of bridge and embankment design alternatives, and BIM-based cost and time estimation. This framework was tested on a highway project with active fault characteristics and high slope gradients. The results of the study show that integral bridges are the most balanced solution, with costs increasing by 80.6% compared to embankments, but implementation time reduced by 60%, as well as providing technical and long-term sustainability benefits and increased design accuracy for varying soil conditions. These findings prove that adaptive VE–BIM integration can transform conventional value analysis into a data-driven decision-making system responsive to geotechnical risks, while also contributing to the development of new methodologies for smart and sustainable infrastructure design. Keywords: Building information modeling, Cost efficiency, Design optimization, Road infrastructure, Value engineering Kompleksitas desain jalan raya di daerah dengan kondisi geoteknik ekstrem seperti lereng curam, tanah lunak, dan zona patahan aktif menimbulkan tantangan besar dalam mencapai efisiensi biaya, waktu, dan keselamatan konstruksi. Pendekatan desain konvensional seringkali tidak mampu beradaptasi secara dinamis terhadap variasi risiko geoteknik, yang mengakibatkan penyimpangan anggaran dan penundaan implementasi. Studi ini bertujuan untuk mengembangkan Kerangka Kerja GeoRisk Adaptif VE-BIM yang mengintegrasikan metode Value Engineering (VE) dan Building Information Modeling (BIM 4D–5D) ke dalam sistem pendukung keputusan berbasis data tunggal. Model ini menggabungkan tahap Rencana Kerja VE dengan masukan data geoteknik, simulasi digital 3D-5D, dan penimbangan multi-kriteria menggunakan Proses Hierarki Analitis (AHP) dan Teknik Urutan Preferensi berdasarkan Kesamaan dengan Solusi Ideal (TOPSIS). Alur kerja terintegrasi mencakup penilaian risiko geoteknik (GeoRisk Assessment), analisis fungsi melalui Diagram FAST, evaluasi alternatif desain jembatan dan tanggul, serta perkiraan biaya dan waktu berbasis BIM. Kerangka kerja ini diuji pada proyek jalan raya dengan karakteristik patahan aktif dan lereng curam. Hasil penelitian menunjukkan bahwa jembatan integral merupakan solusi yang paling seimbang, dengan biaya meningkat sebesar 80,6% dibandingkan dengan tanggul, namun waktu implementasi berkurang sebesar 60%, selain memberikan manfaat teknis dan keberlanjutan jangka panjang, serta meningkatkan akurasi desain untuk kondisi tanah yang bervariasi. Temuan ini membuktikan bahwa integrasi VE–BIM yang adaptif dapat mengubah analisis nilai konvensional menjadi sistem pengambilan keputusan berbasis data yang responsif terhadap risiko geoteknik, sekaligus berkontribusi pada pengembangan metodologi baru untuk desain infrastruktur cerdas dan berkelanjutan. Kata Kunci: Building information modeling, Efisiensi biaya, Optimasi desain, Infrastruktur jalan, Rekayasa nilai
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