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All Journal Jurnal Teknik Sipil JHP17 (Jurnal Hasil Penelitian) The Spirit of Society Journal : International Journal of Society Development and Engagement EXTRAPOLASI: Jurnal Teknik Sipil Jurnal Review Pendidikan dan Pengajaran (JRPP) Community Development Journal: Jurnal Pengabdian Masyarakat International Journal Of Science, Technology & Management (IJSTM) Devotion: Journal of Research and Community Service Extrapolasi International Journal of Social Service and Research JOURNAL OF HUMANITIES, SOCIAL SCIENCES AND BUSINESS (JHSSB) Jurnal Rekayasa Teknik Sipil dan Lingkungan Journal of Social Research Journal Of World Science Journal Of Human And Education (JAHE) International Journal Science and Technology (IJST) Journal of Management, Accounting, General Finance and International Economic Issues (MARGINAL) International Journal on Advanced Technology, Engineering, and Information System (IJATEIS) INJURITY: Journal of Interdisciplinary Studies Journal Research of Social Science, Economics, and Management Eduvest - Journal of Universal Studies Jurnal Ekonomi, Teknologi dan Bisnis Enrichment: Journal of Multidisciplinary Research and Development Asian Journal of Social and Humanities International Journal of Social Science and Community Service
Budi Witjaksana, Budi
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Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts 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 Materials Science & Nanotechnology Mechanical Engineering Neuroscience Public Health Social Sciences Transportation Other

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Analisis Efisiensi Energi Listrik Dengan Metode Albedo Dan Overall Thermal Transfer Value Dalam Konsep Green Building Martaningtyas, Irma; Witjaksana, Budi
Jurnal Ekonomi Teknologi dan Bisnis (JETBIS) Vol. 2 No. 8 (2023): Jurnal Ekonomi, Teknologi dan Bisnis
Publisher : Al-Makki Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57185/jetbis.v2i8.43

Abstract

Terminal Arjosari merupakan salah satu simpul transportasi nasional perlu memberikan pelayanan sesuai standar yang berlaku dan diberikan selama 24 jam. Hal ini berefek pada penggunaan energi listrik. Salah satu cara untuk mencapai penggunaan listrik secara efisien adalah menerapkan konsep Green Building pada bangunan. Analisa albedo dan Overall Thermal Transfer Value (OTTV) sebagai dasar analisa kriteria Greenship. Untuk mengetahui besar nilai efisiensi energi dilakukan analisa Intensitas Konsumsi Energi (IKE). Analisa komponen biaya dilakukan untuk menghitung harga satuan pekerjaan yang kemudian dimasukkan dalam rencana anggaran biaya. Hasil analisa albedo atap diperoleh nilai diluar standar sehingga perlu mengubah atap metaldeck menjadi area roof garden dan menambah luasan plat beton. Dari analisa Overall Thermal Transfer Value diperoleh hasil bahwa selubung bangunan telah efektif untuk mengurangi panas di dalam gedung. Hasil analisa kriteria Greenship yaitu membuat area terbuka hijau atau taman, menambah ventilasi alami dan memakai peralatan hemat daya listrik salah satunya dengan menggunakan eskalator inverter yang bisa menghemat daya 60%. Taman dan Roof Garden merupakan bagian dari area terbuka hijau. Penerapan konsep Green Building dapat menghasilkan efisiensi sebesar 25,64% tetapi meningkatkan biaya awal sebesar 5,92%.
Value Engineering Analysis On The Architectural Work Of The Arjosari Malang Type A Terminal Revitalization Project Meilasari, Shavica Kurnia; Oetomo, Wateno; Witjaksana, Budi
Jurnal Ekonomi Teknologi dan Bisnis (JETBIS) Vol. 2 No. 8 (2023): Jurnal Ekonomi, Teknologi dan Bisnis
Publisher : Al-Makki Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57185/jetbis.v2i8.53

Abstract

Pada tahun 2019, pemerintah pusat membuat DED Revitalisasi Terminal Tipe A Arjosari Malang. Adapun Rencana Anggaran Biaya (RAB) yang dibutuhkan untuk revitalisasi secara keseluruhan adalah Rp. 80 Milyar. Kemudian berdasarkan hasil rapat pembahasan pagu kebutuhan TA 2024 pada tanggal 30 Januari 2023 bertempat di Jakarta, RAB untuk revitalisasi Terminal Tipe A Arjosari Malang terlalu besar dan perlu diefisiensikan lagi. Salah satu item pekerjaan yang masih bisa diefisiensikan biayanya adalah item pekerjaan arsitektur. Ada beberapa faktor yang menyebabkan biaya pekerjaan arsitektur menjadi besar, antara lain bahan dan teknologi. Penggunaan bahan yang mahal dapat meningkatkan biaya proyek arsitektur. Berkaitan dengan hal tersebut di atas, maka digunakan rekayasa nilai atau value engineering dengan tujuan untuk mengefisiensikan biaya serta mencari alternatif alternatif atau ide-ide yang bertujuan untuk menghasilkan biaya yang lebih baik atau lebih rendah dari harga yang telah direncanakan sebelumnya. Hasil value engineering pada pekerjaan arsitektur menghasilkan penghematan sebesar sebesar Rp.1.718.085.568 atau 8% dari biaya awal proyek pekerjaan arsitektur.
Analysis of Improving the Quality of Mass Transportation Services with the Buy the Service (BTS) Scheme Using the Importance Performance Analysis (IPA) Method: Case Study of BTS Route Gresik – Lamongan Alfianti, Diah Mega; Tjendani, Hani Teki; Witjaksana, Budi
Journal of World Science Vol. 4 No. 2 (2025): Journal of World Science
Publisher : Riviera Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58344/jws.v4i2.1284

Abstract

Transportation is fundamental to societal function, impacting lifestyles, production, and service accessibility, and it is a cornerstone of urban mobility. This study evaluates the quality of mass transportation services under the Buy The Service (BTS) scheme on the Gresik - Lamongan route using Importance-Performance Analysis (IPA). The research identifies key performance attributes influencing passenger satisfaction using primary data from field observations, passenger surveys, and secondary data from local transportation authorities. Results indicate high satisfaction with safety features like fire extinguishers, glass breaker hammers, and accessibility features such as priority seating for wheelchair users. However, improvements are needed in areas such as bus intervals and operational consistency. The IPA quadrant analysis highlights strategic priorities for enhancing service quality. Recommendations include prioritizing safety, optimizing accessibility, and leveraging technology to improve reliability and efficiency. These findings offer policymakers and transportation operators insights to enhance service delivery and meet diverse passenger needs.
Evaluation of Drainage System on Public Road in Front of Sidoarjo Religious Court Office Class 1A Ernitasari, Windya Yunesti; Witjaksana, Budi; Patriadi, Andi
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.v2i3.46

Abstract

Flooding in front of the Sidoarjo Class 1A Religious Court Office road happens frequently during the rainy season. It disrupts traffic and damages the roads. Flooding is caused by the condition of the drainage channels, which are not performing efficiently due to sediment barriers such as garbage, and some channels appear to be damaged. The existing channels can no longer accommodate the water discharge caused by the rain, thus water overflows from the drainage channels, flooding the main road. These conditions show the importance of handling drainage problems. One of the ways that can be taken is to evaluate the capacity of existing drainage channels.In this study, the evaluation of drainage channel capacity was carried out using the Hydrological and Hydraulics Analysis method. The purpose of this study was to determine the amount of drainage channel storage capacity required to resolve flooding. The results of this study showed that the design rainfall obtained based on the Log Pearson Type III method was 116.583 mm/day with a 5-year return period. The design flood discharge in channel T1 was 0.717 m3/second, while the capacity of the existing tertiary channel T1 = 0.009 m3/second, so the discharge that overflows from the existing channel T1 was 0.708 m3/second. The capacity of the secondary channel S1 was 2.604 m3 /second, whereas the capacity of the primary channel P1 was 43.043 m3 /second. The capacity of the T1 channel was known to be unable to accommodate the design flood discharge. Therefore, alternative treatments were required to ensure that the T1 channel could accommodate the designed flood discharge.
Analysis of Cost and Time Using Earned Value on the Boarding School Construction Project at SMA Muhammadiyah 3 Tulangan Sidoarjo Nurkaruniati, Titik; Witjaksana, Budi; Tjendani, Hanie Teki
Eduvest - Journal of Universal Studies Vol. 4 No. 9 (2024): Journal Eduvest - Journal of Universal Studies
Publisher : Green Publisher Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59188/eduvest.v4i9.3792

Abstract

Effective project management is crucial for the successful completion of construction projects, including the construction of a dormitory at SMA Muhammadiyah 3 Tulangan. Challenges such as design changes, adverse weather conditions, and limited labor resources impact the project's progress. The Earned Value Method is used to monitor project performance by analyzing indicators like BCWS, BCWP, ACWP, SV, CV, SPI, and CPI. This analysis shows that the project initially experienced delays and exceeded budget costs, but the situation improved significantly over time. Despite weekly variations in costs, the project remained on a financially manageable track. The conclusion from this analysis is that while the project faced time delays, cost performance remained under control. Recommendations for improvement include more thorough planning, better resource management, and quicker responses to changes.
Analysis Of The Earned Value Method on the Road and Bridge Preservation Project in Situbondo-Ketapang-Banyuwangi Setyagraha, Javan Agustian; Witjaksana, Budi; Tjendani, Hanie Teki
Eduvest - Journal of Universal Studies Vol. 4 No. 9 (2024): Journal Eduvest - Journal of Universal Studies
Publisher : Green Publisher Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59188/eduvest.v4i9.3793

Abstract

The implementation of the Situbondo – Ketapang – Banyuwangi Road and Bridge Preservation Project experienced changes in the area being worked on, requiring additional design. Issues arose when the overlay asphalt mix work was halted to await test results for Aspal Modiv PG – 70 from the Pusjatan Bandung Road Materials Laboratory, causing a delay in the 40th week by -0.813%. Delays primarily occurred in the AC - WC and AC - BC asphalt work, affecting project performance. A cost and time analysis was necessary to address this issue. The Earned Value Method (EVM) was used to determine the project's duration and cost until initial handover. The study results indicated that the project cost performance with a CPI > 1 was good, but an SPI of 0.983 < 1 indicated delays. The estimated final project cost is Rp 112,439,121,070.91, with an estimated completion time of 453 days, 3 days longer than the planned schedule.
Cost and Time Analysis Using the Earned Value Analysis Method Hariyadi, Sugeng; Tjendani, Hanie Teki; Witjaksana, Budi
Eduvest - Journal of Universal Studies Vol. 4 No. 9 (2024): Journal Eduvest - Journal of Universal Studies
Publisher : Green Publisher Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59188/eduvest.v4i9.6402

Abstract

Construction project management prioritizes the achievement of three main objectives: cost, quality, and time. This study evaluates a road widening project in Mojokerto Regency with a target completion time of 150 days. To prevent delays and cost overruns, researchers used the Earned Value method to identify early warnings regarding project performance. This method integrates time and cost values through measurements of Cost Variance (CV), Schedule Variance (SV), Cost Performance Index (CPI), Schedule Performance Index (SPI), Estimated at Completion (EAC), and Estimated Schedule at Completion (EAC). The research findings show that additional costs required (ETC) reached Rp 3,276,704,110.14, with additional time (ETS) up to week 12 being 87 days. The change in project costs (EAC) reached Rp 3,961,767,811.01 from the contract cost, while the project completion time (EAS) was 171 days. The analysis indicates that the construction service provider has implemented an efficient implementation method with consistent supervision, ensuring the smooth progress of the project.
Analysis of Acceleration Construction Project the Lecture Building at Politeknik Negeri Madura Using the Time Cost Trade off Method Herkunadi, Dimas Fitra; Witjaksana, Budi
Journal Research of Social Science, Economics, and Management Vol. 4 No. 11 (2025): Journal Research of Social Science, Economics, and Management
Publisher : Publikasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59141/jrssem.v4i11.909

Abstract

This study investigates the effectiveness of Social Media Marketing Activities (SMMA) on purchase intention, using Fitfuel as a case study. The research examines the impact of SMMA on brand awareness and customer trust, and how these two variables influence purchase intention. A quantitative approach was employed, using online questionnaires distributed to 200 respondents, supported by interviews with Fitfuel's management. The external and internal environment were analyzed through PESTEL, Porter’s Five Forces, competitor analysis, STP, Marketing Mix, VRIO, and SWOT. Results show that SMMA has a significant positive effect on both brand awareness and customer trust. In turn, both brand awareness and customer trust positively influence purchase intention. However, communication between consumers and the brand (as part of SMMA) was found to have a less significant effect compared to other indicators. The study presents a TOWS matrix and implementation plan to offer strategic actions for Fitfuel to optimize its digital marketing, strengthen brand perception, and increase conversion. This research contributes to understanding how digital marketing components affect customer behavior in the health food sector.
Cost Control Analysis Using the Earned Value Method on the Warehouse Construction Package and its Supporting Facilities at Juwata Airport Imaniar, Ridha Annisa; Witjaksana, Budi; Purnama, Jaka
Enrichment: Journal of Multidisciplinary Research and Development Vol. 2 No. 12 (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.v2i12.316

Abstract

The construction of warehousing and supporting facilities at Juwata Airport has several obstacles that cause delays in the implementation of the work, so a work control method is needed, namely the earned value method by assessing the cost and time performance of project implementation such as Cost Variance (CV), Schedule Variance (SV), Schedule Performance Index (SPI), and Cost Performance Index (CPI) as well as the estimated cost and time of project completion. The purpose of this research is to calculate the amount of cost needed to complete the project of Warehousing Development Package and Supporting Facilities of Juwata Airport on time according to the plan schedule. The method used is the Earned Value Method in evaluating cost performance and time performance. The analysis carried out uses 3 (three) indicators, namely ACWP (Actual Cost of Work Performance), BCWP (Budgeted Cost of Work Performance) and BCWS (Budgeted Cost of Work Scheduled). By using the earned value method, the final project cost estimate obtained from the EAC is Rp. 15,019,062,678.43 and the estimated time / Time Estimate (TE) at week 26 shows 239 calendar days so that the completion time is 28 days late from the contract schedule. And the solution to the delay is to accelerate the work with an additional cost of Rp. 68,970,000. Future research should explore optimization strategies to enhance efficiency in cost estimation and project scheduling.
Analysis of Project Implementation Costs Using the Crashing Method in The Improvement of The Andongrejo-Bandialet Road, Jember District Ardianto, Lukman; Wulandari, Esti; Witjaksana, Budi
Enrichment: Journal of Multidisciplinary Research and Development Vol. 3 No. 5 (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.v3i5.477

Abstract

Construction project control is a systematic process aimed at ensuring that project objectives align with planning standards. One method used to accelerate project duration is "crashing," which involves reducing the time of specific activities that affect project completion, focusing particularly on activities on the critical path. This research adopts a descriptive method to collect and analyze data on the status of current symptoms related to project time management. Data collection was conducted through documentation, utilizing records, images, and work outputs. The results show that total project costs decrease significantly as the level of time compression (reduction of project duration) increases. However, increasing labor costs exhibits a small but consistent rise, indicating lower cost efficiency. The most optimal project costs were observed when additional working time was utilized, as opposed to adding more labor. In conclusion, while the crashing method is effective for reducing the risk of fines and indirect costs, selecting the best alternative requires balancing productivity and marginal costs (cost-time trade-off). For similar projects, extending working hours proves more cost-effective than increasing workforce size.
Co-Authors A. Asrijal Abdul Q, Muhammad Ali Hasymi Adam, Ijaz Adi Purwanto Adiputra, Reza Aditya, febri Agustian Setyagraha, Javan Akhmad Dahlan Alan Muin, Oskar Ezra Alfianti, Diah Mega Ali Imron, Mohammad Alifia Amalia, Mekar Meilisa Ardhiansyah, Widha Ardianto, Lukman Ari Purwanti Arifin, Syaadiah Ariyanto, Subkhan Asmoro, Mochamad Ranoe Balido, Pandji Thoha S. Cahyono, Febri Candra Kelana Putra, Utuh Dwi Candra M, Alang Dewi, Dita Dismalasari Eko Pramono Ernitasari, Windya Yunesti Esti Wulandari Eva Desembrianita Farchan, Muchamad Firdaus, Muhammad Bayu Gede Sarya, Gede Hamzah, Aulia Hanie Teki Tjendani, Hanie Teki Hardi, Edelbertus Lusius Hartawan, Ade Sholeh Hepiyanto, Rasio Hepiyanto, Rasio Herkunadi, Dimas Fitra Herry Widhiarto, Herry Ibnu Andli Marta Imron, Achmad Imron, Achmad Irfan, Bachtiar Muhammad Irma Martaningtyas, Irma Jaka Purnama K., Moh Ali Lutfi M. Khakimin, Achmad Lukmanul Langi, Jeffrey Payung Lendra Lendra Lesmana, Denny Indra Liza Husnita Lutfi, Moh Ali Meganda, Danniar Firdaus Meilasari, Shavica Kurnia Mochamad Nurcholis Mughni, Amalia Fathimah Azh Zhahra Muhammad Muhammad Muqaddas, Zaiful Nailufar, Linda Nofirman, Nofirman Novianto, Muhammad Taufik Nugraha, Budidarma Ardi Nurkaruniati, Titik Oetomo, Wateno Patriadi, Andi Permana, Midi Agus Pramadha, Ichsan Yanuansyah Prastyadi Wibawa Rahayu Pratondo W, Wahyu Proboretno, Wuri Purba, Ulfani Ikhwana Putri, Dwi Cahyani Rafi, Yudha Fatkur Rahmatullah, Yan Raimundo, João Rakasyiwi, Gilang Ramadhan Reresi, Samuel Petrik Reresi, Samuel Petrik Ridha Annisa Imaniar Riduwan, Sanda Praja Ridwan, Ridwan Rohim, Abd. RR. Ella Evrita Hestiandari Sajiyo Sajiyo, Sajiyo Septa Intiar SETIAWAN, ENDIK Setyagraha, Javan Agustian Sudrajat, Didi Sugeng Hariyadi, Sugeng Sulistianto, Leo Agus Suroso Suroso Tamrin Fathoni Teguh Prasetijo, Christiawan Teki Tjendani, Hanie Tjendani , Hanie Teki Tjendani, Hani Teki Triska Bayu Wedananta, Komang Gede Veithzal Rivai Zainal Venusia A, M. Fajar Wahananto, Anang Wahyu Pamungkas, Rino Widyarso, Riza Wulandari , Esti Zesario Akbar, Rendy Zuhri, Syaefuddin