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Journal : International Journal Science and Technology (IJST)

STRATEGIC OVERTIME IMPLEMENTATION: ASSESSING CRASH TIME, CRASH COST, AND COST SLOPE IN THE CONSTRUCTION OF KADIRI UNIVERSITY'S 4-STORY BUILDING Ali, Mahardi Kamalika Khusna; Tjendani, Hanie Teki; Witjaksana, Budi
International Journal Science and Technology Vol. 3 No. 2 (2024): July: International Journal Science and Technology
Publisher : Asosiasi Dosen Muda Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56127/ijst.v3i2.1309

Abstract

The lecture building is an important building which is the center of academic activities where educational activities are carried out. Currently, the construction of a four-story lecture building at Kadiri University is experiencing significant project delays with a deviation of 5.64% from the plan. Crash analysis can be carried out to speed up the duration of the project so that it can be completed on time with additional working hours. This research aims to determine crash time, crash costs, and cost slope for the application of overtime on the 4-story building construction project at Kadiri University. A quantitative and case study approach was used with data collected through observation, interviews, and analysis of project documents. Critical Path Method (CPM) analysis is carried out using Microsoft Project software to identify work that is on the critical path. Crashing is done by calculating crash time, crash cost, and cost slope. The research results show that applying 1 hour of overtime can speed up the project by 12 working days, with an additional cost of IDR 24,488,758. Cost slope analysis shows additional overtime costs of IDR 12,244,379. This research shows that the application of measurable overtime and crashing analysis can effectively overcome project delays in the context of building educational facilities.
EVALUATION OF TIME AND COST PERFORMANCE ON THE GX OFFICE & CO WORKING BALI PROJECT USING THE EARNED VALUE METHOD Rohim, Abd.; Witjaksana, Budi; Tjendani, Hanie Teki
International Journal Science and Technology Vol. 3 No. 2 (2024): July: International Journal Science and Technology
Publisher : Asosiasi Dosen Muda Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56127/ijst.v3i2.1337

Abstract

In rapid construction developments, delays still occur frequently and have not been resolved, as experienced by the GX Office & Co Working Bali project. The project will be completed in 42 weeks, but in the 27th week, there is an indication of a delay of -4.31% from the initial plan. Earned Value Method (EVM) is a time and cost performance assessment method that can be used to develop strategies to minimize delays. This research aims to evaluate the time and cost performance of the GX Office & Co Working Bali project using the EVM method. A quantitative approach is used to collect and analyze project schedules, actual costs, and progress reports. EVM key indicators such as Planned Value (PV), Earned Value (EV), and Actual Cost (AC) are analyzed to determine Schedule Variance (SV), Cost Variance (CV), Schedule Performance Index (SPI), and Cost Performance Index (CPI). The results showed that the project experienced delays, especially from week 1 to week 14 and week 19 to week 27, with SPI values mostly below 1. However, the project showed increased efficiency in cost management with values CPI above one after week 14 to week 27, indicating that the actual costs incurred are lower than the value of the work completed. These findings highlight the need for corrective actions and more effective management strategies to address delays efficiently in terms of costs.
Co-Authors Abdul Q, Muhammad Ali Hasymi Abid, Ahmad Rois Adam, Ijaz Alan Muin, Oskar Ezra Alifian, Muhammad Hilmi Alves, Agata Maria Orleans Andiyan Aprilina, Sasa Ariyanto, Subkhan Asmoro, Mochamad Ranoe Assyifa, Moh Zahdi Aviska Triayaska Balido, Pandji Thoha S. Budi Witjaksana, Budi Dani, Bintang Arma Erni Puspanantasari Putri, Erni Puspanantasari Esti Wulandari Esti Wulandari Farokhman, Moh Fani Febryan, Daniswara Fawwaz Firdaus, Muhammad Bayu Hastijanti, Ar. RA. Retno I Wayan Gunawan, I Wayan Intan Kusumaningayu Jaka Purnama Jamiludin, Jamiludin Khakimin, Achmad Lukmanul Klau, Maria Junita Koten, Oktafiano Agustinus Laksono Djoko Nugroho Luis, Laurenco Mardiah, Arifa Minaryo, Kris Muchamad Lutfi, Muchamad Mughni, Amalia Fathimah Azh Zhahra Muhammad Efendi, Muhammad Muhammad Shohib, Muhammad Muqaddas, Zaiful Novianto, Muhammad Taufik Nugraha, Budidarma Ardi Nurkaruniati, Titik Oetomo, Wateno Omanwar, Shreeniwas Patriadi, Andi Pramadha, Ichsan Yanuansyah Pratondo W, Wahyu Proboretno, Wuri Puspanantasari, Erni Rahmad Junaidi, Rahmad Rahmad Oktantiyo, Abiyyu Rahmatullah, Yan Rakasyiwi, Gilang Ramadhan Renden, Afrianto Tandi Riduwan, Sanda Praja Risma Marleno Riyadi, Noor Rizkiardi, Aditya Rochmat, Muhammad Fikri Ar Rohim, Abd. Rudiansyah Sajiyo Sajiyo, Sajiyo Saputri, Firda Auliya Ajie Selan, Mikdon Tobi Sembiring, Yuriza Fauziah SETIAWAN, ENDIK Setyagraha, Javan Agustian Shinta Berlinda Wulandari Slamet Riyadi Sugeng Hariyadi, Sugeng Suprapto, Aki’ Supriyanto, Yunaidi Veithzal Rivai Zainal Widyaningsari, Nidya Zuhri, Syaefuddin Zuhriyah, Aminatuz