WIJAYA, AURELIA IKA (2025) ANALISIS PERCEPATAN MENGGUNAKAN METODE TIME COST TRADE OFF (TCTO) PADA PROYEK KONSTRUKSI (Studi Kasus : Proyek Ruang Trafo, Lampung). S1 thesis, Universitas Mercu Buana Jakarta.
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Abstract
Advances in construction pose challenges in project control related to cost, time Advances in construction pose challenges in project control related to cost, time and quality. Project delays, often caused by poor planning, delayed material procurement and external conditions, can have significant negative impacts, such as increased costs and poor project reputation. In the construction of the transformer room in Lampung, the existing obstacles are the access road and design layout changes on the road and drainage that hamper the work of making the hallway. To overcome these problems, the Time Cost Trade Off (TCTO) method was used as a solution to accelerate project completion without sacrificing quality. The TCTO method allows time acceleration through the addition of resources, such as additional labor and overtime working hours, while still optimally considering the additional costs. With this approach, the project is expected to be completed faster while minimizing the risk of cost overruns due to time acceleration. The results of the study showed that adding three hours of overtime accelerated the duration to 91 calendar days (22.58%) with a cost increase of 0.40%. In the second alternative, adding 10% (1 worker) to each job accelerated the project duration to 81 calendar days (31.36%) with a cost increase of around 0.12%. The method of adding labor is more effective because the project duration is shorter and the cost increase is smaller compared to overtime. Keywords : Acceleration, Time Cost Trade Off (TCTO), Crashing, Duration Kemajuan dalam dunia konstruksi menjadi tantangan dalam pengendalian proyek terkait biaya, waktu dan kualitas. Keterlambatan proyek sering disebabkan oleh perencanaan yang kurang matang, pengadaan material yang tertunda dan kondisi eksternal, dapat menjadi dampak negatif yang signifikan, seperti biaya yang meningkat dan buruknya reputasi proyek. Dalam pembangunan ruangan trafo di Lampung, hambatan yang ada yaitu akses jalan masuk dan perubahan layout desain pada jalan dan drainase yang menghambat pekerjaan pembuatan selasar. Untuk mengatasi masalah tersebut, metode Time Cost Trade Off (TCTO) digunakan sebagai solusi untuk mempercpat penyelesaian proyek tanpa mengorbankan kualitas. Metode TCTO memungkinkan percepatan waktu melalui penambahan sumber daya, seperti tenaga kerja tambahan dan jam kerja lembur, dengan tetap mempertimbangkan biaya tambahan secara optimal. Dengan pendekatan ini, proyek diharapkan dapat diselesaikan lebih cepat sambil meminimalkan risiko pembekakan biaya akibat percepatan waktu. Hasil penelitian dengan penambahan tiga jam lembur mempercepat durasi menjadi 91 hari kalender (22,58%) dengan biaya naik 0,40%. Pada alternatif kedua yaitu penambahan 10% (1 tenaga kerja) disetiap pekerjaan mempercepat durasi proyek hingga 81 hari kalender (31,36%) dengan kenaikan biaya sekitar 0,12%. Metode penambahan tenaga kerja lebih efektif karena durasi proyek lebih singkat dan peningkatan biaya lebih kecil dibandingkan lembur. Kata Kunci : Percepatan, Time Cost Trade Off (TCTO), Crashing, Durasi
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