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All Journal Equilibrium: Jurnal Pendidikan INTENSIF: Jurnal Ilmiah Penelitian dan Penerapan Teknologi Sistem Informasi Journal of Research and Technology The Spirit of Society Journal : International Journal of Society Development and Engagement Istinbath: Jurnal Hukum dan Ekonomi Islam Jurnal Teknik Industri Terintegrasi (JUTIN) Jurnal Surya Teknika JISO : Journal of Industrial and Systems Optimization International Journal of Environmental, Sustainability, and Social Science Devotion: Journal of Research and Community Service International Journal of Social Service and Research JOURNAL OF HUMANITIES, SOCIAL SCIENCES AND BUSINESS (JHSSB) Journal Of World Science International Journal Science and Technology (IJST) TRANSPUBLIKA INTERNATIONAL RESEARCH IN EXACT SCIENCES (TIRES) International Journal on Advanced Technology, Engineering, and Information System (IJATEIS) Journal of Governance, Taxation, and Auditing Journal of Social Science Jurnal Spesialis Teknik Sipil (JSpTS) Enrichment: Journal of Multidisciplinary Research and Development Asian Journal of Science, Technology, Engineering, and Art IIJSE Asian Journal of Social and Humanities International Journal of Social Science and Community Service Journal of Multidisciplinary Academic and Practice Studies
Sajiyo Sajiyo, Sajiyo
Universitas 17 Agustus 1945 Surabaya
Religion Arts Humanities 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 Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Social Sciences Transportation Other

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Analysis of Additional Time Costs Construction of the Religious Court Office Building of Trenggalek Regency, East Java Widyaningsari, Nidya; Tjendani, Hanie Teki; Sajiyo, Sajiyo
Indonesian Interdisciplinary Journal of Sharia Economics (IIJSE) Vol 9 No 1 (2026): Sharia Economics
Publisher : Universitas KH. Abdul Chalim Mojokerto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31538/iijse.v9i1.9274

Abstract

This study discusses several ways to accelerate the building construction process. The study used two methods, namely crashing and overlapping. The crashing method involves adding overtime hours and labor to shorten the project duration. Meanwhile, overlapping is rearranging the relationship between tasks so that they can be done simultaneously without reducing the initial time, thus accelerating completion at a relatively comparable cost. The analysis results show that both methods are effective in accelerating projects, with the overlapping method requiring less cost and providing greater time reductions. The choice of the best method depends on budget constraints and the project's completion time requirements. Thus, this acceleration strategy can help project management in achieving time targets at an optimal cost.
Analysis of Cost Acceleration Using Time Cost Trade Off Method on Wheat Silo and Pellet Silo Phase III Structure Repair Project in Surabaya Klau, Maria Junita; Sajiyo, Sajiyo; Tjendari, Hanie Teki
International Journal of Social Science and Community Service Vol. 2 No. 3 (2024): JULY
Publisher : CV. Proaksara Global Transeduka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70865/ijsscs.v2i3.24

Abstract

The Wheat Silo and Pellet Silo Structural Repair Project Phase III in Surabaya holds great significance in the wheat flour processing industry in Indonesia. PT Indofood Sukses Makmur Tbk Bogasari Surabaya Division, one of the leading wheat flour producers, required structural repairs on both silos to ensure smooth plant operations and final product quality. The project necessitates proper project management to avoid delays and cost overruns, with a budget of Rp. 28,011,000,000 and an estimated duration of 455 calendar days. This study employs the Time Cost Trade-Off (TCTO) method to analyze options for accelerating the project timeline by considering additional costs that may arise. The results showed that by using TCTO, the project completion time can be accelerated to 359 days from 455 days, reducing the duration by 21.10% at an additional cost of Rp. 739,351,125.00 or 2.64% of the project value. With the addition of 1 hour of overtime per day, the cost of accelerating the project is Rp. 413,445,000.00 or 1.48% of the project value, reducing the work time to 391 days or 14.07% of the original schedule.
Sensitivity Analysis of Revenue Potential in The Evaluation of East Surabaya Hospital Investment Astasari, Arianti Widi; Oetomo, Wateno; Sajiyo, Sajiyo
International Journal of Social Science and Community Service Vol. 2 No. 4 (2024): OCTOBER
Publisher : CV. Proaksara Global Transeduka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70865/ijsscs.v2i4.32

Abstract

As one of the largest cities in Indonesia, the City of Surabaya has an obligation to provide excellent health services for its residents. It goes without saying that Surabaya City Government is required to provide a General Hospital that can receive referrals from the government-owned Community Health Centers. For this reason, the Surabaya City Government built the East Surabaya Hospital which is located in Rungkut Sub-District. East Surabaya Hospital is a strategic project that requires investment feasibility analysis. The East Surabaya Hospital investment feasibility analysis was done by applying the Net Present Value (NPV), Internal Rate of Return (IRR), Payback Period (PP) and Benefit Cost Ratio (BCR) parameters. After the feasibility analysis results were obtained, a sensitivity analysis was done on changes in management costs and the amount of health service levy rates for each Fees alternative. Based on the results of the investment feasibility analysis of 4 (four) Fees alternatives, there are 2 alternatives that can be concluded as worthy investments, which are alternative 1 and alternative 3. Meanwhile, alternative 2 and alternative 4 are not feasible since the NPV parameter shows negative values and the IRR value is lower than the MARR value. However, based on sensitivity analysis, alternatives 2 and 4 can be feasible if alternative 2’s service rate is increased by 13.2%, and alternative 4’s service rate is increased by 2.3%. The opposite applies in alternative 1 where the investment might become unfeasible if the service rate is reduced by more than 5.4% and alternative 3 might become unfeasible if the service rate is reduced by more than 2.5%.
Co-Authors Abdillah, Pradana Affan Abdulrahim, Muslimin Abid, Luthfil Adi Kurniawan Aditya, febri Ahmad Agus Hidayat Ahmad Badawi, Ahmad Ahmad Sarifuddin Amin, Farid Anwar Anwar Amin, Farid Arasid, Afrizal Yusuf Ariyanti, Menik Astasari, Arianti Widi Aulia, Dian Rahma Az Zahra, Karunia Bahrudin, M. Sulton Budi Prasetiya, Kukuh Budi Witjaksana, Budi Chablullah Wibisono Damayanti, Rachma Djatmiko, Mochammad Elsen Ronando Erni Puspanantasari Putri, Erni Puspanantasari Esti Wulandari Fachril Aliffiansyah Farchan, Muchamad Habib, Ahmad Hanie Teki Tjendani, Hanie Teki Hardiyanti, Istiqom Shinta Ihsabaihaki, Ainur Ihsan, Nurdin Istantyo Yuwono, Istantyo Kanugrahan, Tri Rizki Klau, Maria Junita Koesdijarto, Roenardi Kurnia, Alfadhil Surya Laksana Putra, Negarawan Laksono Djoko Nugroho Mujianto, Slamet Ngaliman, Ngaliman Novita, Siska Arie Oetomo, Wateno Oktafiansyah, Turmudi Patriadi, Andi Perdana, Dicky Rianda Pratama, Novi Ariyan PUJIASTUTI, Fitria Lestari Puspita, Asri Dwi Putera, Rendra Pramana Putranto, Yonandika Pandu Putri, Helsa Ade Ayu Kumala Rahmad Oktantiyo, Abiyyu Rezinto, Fahuril Riyadi, Noor RR. Ella Evrita Hestiandari Rumihin, Paschal Sanjaya, Robi Saputra, Lucky Hendra Seki, Thomas Aquino Sharhani Qisthinaningtyas Sunan, Muhamat Surawan, Surawan Tasya Febrinda Ardika Putri Tjendari, Hanie Teki Wahyu, Lestyanto Wateno Oetomo Widyaningsari, Nidya YUNUS, Andi Zahra, Karunia Az Zuhri, Fuad Jauhar Zuhriyah, Aminatuz