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All Journal International Journal Of Science, Technology & Management (IJSTM) Jurnal Teknik Sipil Cendekia (JTSC) Devotion: Journal of Research and Community Service Journal of Social Research Jurnal Ekonomi, Teknologi dan Bisnis Enrichment: Journal of Multidisciplinary Research and Development Asian Journal of Social and Humanities
Teki Tjendani, Hanie
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Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mechanical Engineering Social Sciences Transportation

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Time and Cost Analysis Using the Critical Chain Project Management Method in the Retrofitting Work of the East Java Province Human Rights Office Building into a Green Building Aji Sasongko, Christio; Teki Tjendani, Hanie; Wulandari, Esti
Enrichment: Journal of Multidisciplinary Research and Development Vol. 3 No. 9 (2025): Enrichment: Journal of Multidisciplinary Research and Development
Publisher : International Journal Labs

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55324/enrichment.v3i9.568

Abstract

The retrofitting work of the East Java Province Public Works Office Building into a Green Building encountered several obstacles during the construction process that caused delays in the execution of the work. Therefore, scheduling control is needed using the Critical Chain Project Management method. CCPM aims to manage scheduling design and process control by concentrating on eliminating multitasking, Parkinson's Law, and student's syndrome, which have been considered to cause suboptimal field work execution time and increased waste in terms of time. CCPM also has a buffer mechanism used in scheduling as a tool to protect project schedules from uncertainty, ensuring that every task can be completed on time. By using the Critical Chain Project Management method, a project buffer value of 26 days and a feeding buffer of 11 days were obtained, so that the original work duration of 180 days would become 143 days if the entire buffer of 37 days was not applied. The implementation cost with a value of Rp. 32,048,830,700 can be more efficient at Rp. 30,584,593,995 if the entire buffer is not used, with a project buffer saving of Rp. 1,028,923,090 and feeding buffer savings of Rp. 435,313,615, resulting in a total work cost savings of Rp. 1,464,236,705.
Cost Analysis of Additional Rainfall Station in The Kayan River Area, North Kalimantan Province Abdillah, Fadzil; Teki Tjendani, Hanie; Wulandari , Esti
Enrichment: Journal of Multidisciplinary Research and Development Vol. 3 No. 10 (2026): Enrichment: Journal of Multidisciplinary Research and Development
Publisher : International Journal Labs

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55324/enrichment.v3i10.606

Abstract

With a total area of the Kayan River Basin (WS) reaching 3,178,215.72 hectares, when compared to other River Basins in Kalimantan, the Kayan WS only has seven rain gauge stations, of which six are in good condition and one is damaged or inactive. Therefore, it is important to determine the appropriate rationalization method in order to obtain the appropriate number and distribution of rain gauge stations and can represent the characteristics of the area in the Kayan River Basin. The method used to analyze the rationalization of these rain gauge stations includes determining the maximum need, minimum need, and the Kagan-Rodda method. After evaluating several methods, the most suitable method for rationalizing rain stations in the Kayan WS is the Kagan-Rodda method. The results of the evaluation of the need for rain stations in the Kayan River Basin are 33 (thirty-three) stations, the existing rain stations are 6 (six) stations, the need for the addition of 27 (twenty-seven) new rain stations.
Co-Authors Abdillah, Fadzil Adi Purwanto Agustian Setyagraha, Javan AJI SASONGKO, CHRISTIO Ali Imron, Mohammad Ardhiansyah, Widha Atwin Suyitno, Dwi Brian V P, Andreas Budi Witjaksana, Budi Candra Kelana Putra, Utuh Dwi Esti Wulandari Frengky Rumihin, Ony godinho, domingos Hamzah, Aulia Mochamad Nurcholis Muhammad Muhammad Nur Yaqin, Heru Nurkaruniati, Titik Oetomo, Wateno Purwayudhaningsari, Ranatika Rahan Ardiansyah, Mohamad Rohim, Abd. Sugeng Hariyadi, Sugeng Teguh Prasetijo, Christiawan Triska Bayu Wedananta, Komang Gede Ummatus Sholikhah, Ummatus Witjaksana , Budi Wulandari , Esti