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Nurcahyo, Adi
Universitas Muhammadiyah Surakarta
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Journal : Astonjadro

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Optimization with Crashing Method and Linear Programming Application on Type 36 Housing Projects Iq'bal Khairul Amar, Tsulis; Nurcahyo, Adi; Jenar Bagaskara, Gilang; Safta Wijaya, Arif
ASTONJADRO Vol. 12 No. 1 (2023): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v12i1.8436

Abstract

The growth of housing in Indonesia has been very significant in recent years.   The most found type of house is type 36. One of the areas with high purchasing power for housing is the Kendal Regency, which became the object of this study. Often housing projects experience delays caused by internal and external factors that can interfere with the duration of the initial planning. The effort that can be made to maintain the level of progress of the project is by acceleration. The optimal cost of the project due to the reduction in duration can be completed by acceleration techniques (Crashing) as linear programming models.   In this study, Crashing and Linear Programming methods were chosen to optimize the value of adding costs to accelerate three samples of housing. Housing A, Housing B, and Housing C. The data collected is in the form of RAB, scheduling, and other supporting documents. Linear programming in this study using LINDO software. The plan to accelerate the construction of type 36 housing is carried out using alternative overtime working hours, adding 1, 2 and 4 working hours on critical activities of each project. The optimum time is selected based on the smallest cost slope value from the program crashing calculation. The result is shown that in housing A the most optimal addition was 2 hours of overtime with a total extra cost of Rp.   54,643,600 and a total acceleration of 15 days. In housing B, the optimum value of time and cost is by adding 4 hours of overtime with a total additional cost of Rp.   21,644,140 with a 27-day acceleration. In housing C, the development optimizes by adding 4 hours of overtime at an additional cost of Rp.   74,587,900 with a 29-day acceleration.
Co-Authors Abi Fadila Aditia Rigianti, Henry Alma Yasinta Candra Pratiwi Annisa Swastika Antok Aryuana Arif Setiawan Artik Aryuana, Antok Budi Usodo Budi Usodo Budiyono Budiyono Budiyono, Budiyono Cahyo Utomo, Arief Christina Kartika Sari Edy Heru Prasetyo Elis Setyowati Elis Setyowati Evikasari, Ira Farizqi, Muhammad Luthfi Fayza Putri Chalistha Fitri Choirul Muttaqin Fitriani, Nanda Milenia Hanifah, Millenia Hapsari, Mesaluna Rida Harsono Harsono Harun Joko Prayitno Ilham Rais Arvianto Ismiranda, Khoirina Isnaeni Umi Machromah Jenar Bagaskara, Gilang Khathibul Umam Zaid Nugroho Khofifah Titan Palupi Khotimah, Dinta Ameliana Khusnul Lintang Yanuarita M. Noor Kholid M. Noor Kholid Meilani, Rosa Millenia Hanifah Mohamad Waluyo Mohammad Rifki Maulana Muhammad Noor Kholid Musthofa, Akbar Fadel Dwiki Naufal Ishartono Nida Sri Utami Novani, Jihan Nugroho Arif Sudibyo Nuqthy Faiziyah Nurfitri, Diva Mutiara Pratiwi, Alma Yasinta Candra Purnamasari, Diana Tri Putri, Fitria Afifah Aliya Rafiza Abdul Razak Rahma, Tara Kamila Razak, Rafiza Abdul Rini Setyaningsih Risda Putri Nugrahani Risma Kurnia Wati Rohman Rukmi, Kartika Ryan Rizki Adhisa Safta Wijaya, Arif Samudra, Sikah Imel Sari, Fhitri Indah Sari, Ragista Maya Serlia Novita Sari Setyowati, Elis Sheilawati, Kharisa Rinandyta Siti Wulandari Sri Rejeki Sri Rejeki Sufahani, Suliadi Firdaus Sukestiyarno, Y. L. Suliadi Firdaus Sufahani Sulistiawati, Yuni Sumardi . Sutama Tika Andriani Toyib, Muhamad Tsulis Iq'bal Khairul Amar Umi Salamah Wahyu Nur Hidayati Wahyuning Putri Bima Waluyo, Mohamad Widya Ayu Pangestika Wulan Galuh Rahma Perwita Wulan Rahma Galuh Perwita