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All Journal Program Kreativitas Mahasiswa - Pengabdian Kepada Masyarakat The Spirit of Society Journal : International Journal of Society Development and Engagement Jurnal Teknik Industri Terintegrasi (JUTIN) Devotion: Journal of Research and Community Service COMSERVA: Jurnal Penelitian dan Pengabdian Masyarakat International Journal on Advanced Technology, Engineering, and Information System (IJATEIS) Menara Pengabdian INJURITY: Journal of Interdisciplinary Studies Jurnal Teknik Indonesia Enrichment: Journal of Multidisciplinary Research and Development Jurnal Media Ilmu JAT (Journal of Accounting and Tax) International Journal of Social Science and Community Service
Esti Wulandari
Pendidikan PKn, FPIPS, IKIP PGRI Madiun
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Mechanical Engineering Public Health Social Sciences Transportation Other

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Analysis of Contractual Based Construction Implementation and Self-Managed Construction Implementation Based on Community Empowerment Suprapto, Aki’; Wulandari, Esti; Tjendani, 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.v2i3.30

Abstract

This research aims to determine community empowerment-based self-management construction projects and contractual-based construction projects in Sumenep District, using the AHP (Analytical Hierachy Process) method. The AHP method is used to analyze the results of the questionnaire so that the weight value of the criteria and sub criteria can be known as the basis for selecting the implementation of construction activities. Based on the results of the analysis of alternative construction implementation contractual weight is 0.501 and community empowerment is 0.499. The implementation of contractual-based construction projects is preferred with consideration of a more organized implementation, both in time (time schedule) and regulations governing it such as sanctions and fines when there are obstacles in the field being part of the responsibility for the implementation of contractual-based construction. Contractual-based construction implementation tends to be more organized and in accordance with strict schedules and regulations, including sanctions and fines if there are obstacles in the field. In contrast, self-managed construction based on community empowerment, such as in the village fund program, often has leeway in terms of a longer implementation period and supervision carried out by the community itself, not by experts. Thus, stakeholders are expected to clarify the regulations governing which works are carried out in a self-managed manner and which works are carried out contractually in government programs.
Analysis of Determining Road Damage Repair Methods Based on Availability of Budget on the Road Segment of East Java Province Jarwoto, Jarwoto; Wulandari, Esti; Nugroho, Laksono Djoko
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.v2i12.317

Abstract

Pavement damage on the Maospati - Magetan - Cemorosewu Road is severe, with issues such as potholes, surface deformation, peeling asphalt layers, and structural deflections due to heavy vehicle loads. These conditions pose significant risks, particularly during the rainy season, leading to hazardous driving conditions. This research aims to analyze the extent of road surface damage and recommend appropriate maintenance solutions using the PKRMS (Provincial/District Road Management System) method and the Bina Marga method. Data were collected through field surveys and official agency reports to assess road conditions. The findings indicate that the overall road condition is relatively good, with low levels of damage. Based on the Bina Marga and PKRMS assessments, routine maintenance is the most suitable repair strategy to prevent further deterioration and enhance road safety. The research underscores the importance of proactive and regular road maintenance planning to ensure long-term road durability. Future research should explore cost optimization strategies and predictive maintenance models to improve infrastructure sustainability.
Analysis of Building Construction Project Management Using Lean Construction Approach to Determine Cost and Time Waste in the Construction Project of Pondok Pesantren Syifaul Qulub Surabaya Efendi, Muhammad; Tjendani, Hanie Teki; Wulandari, Esti
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.v2i12.318

Abstract

This research investigates cost waste in detailed engineering design for the Syifaul Qulub Surabaya Islamic Boarding School construction project, aiming for on-time, on-budget completion. Utilizing a Lean Construction approach, the study analyzes waste reduction in this densely populated, limited-access urban environment. Primary data from questionnaires were processed to weigh waste in each activity, followed by value stream analysis tools, including Process Activity Mapping, to identify Value-Added (VA) and Non-Value-Added (NVA) activities. The findings revealed that waiting was the primary cause of waste, contributing to 41.8% of critical waste and a 33-day project delay. Root causes included material procurement issues, transportation challenges, and equipment problems. Waste accounted for 21% of all project jobs, categorized as Unnecessary Movement (13.7%), Transportation (12.2%), Material Defects (11%), Storage (10.9%), and Overproduction (6.8%). By addressing these wastes through targeted Lean interventions, the research suggests a potential project acceleration of approximately 16.5% (33 days) and a cost reduction of 5-10% by optimizing resource use and minimizing material waste. These results demonstrate the practical benefits of Lean Construction in mitigating inefficiencies and delays in challenging urban builds.
Performance Analysis and Operation and Maintenance Cost Requirements for Rapak Di Drainage Yusnita, Maya; Wulandari, Esti; Nugroho, Laksono Djoko
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.v2i12.319

Abstract

Inadequate drainage infrastructure often leads to waterlogging during rainfall, emphasizing the need for urgent repairs. This study assesses the performance condition of the Rapak Dalam Drainage system using a quantitative and qualitative approach, including field observations, direct measurements, and hydrological data analysis. The findings indicate that the drainage system is rated at a "Good" performance level, with a functional capability of 80.56%. Although the system effectively manages water in most areas, certain components require immediate repairs to maintain optimal functionality. To enhance drainage performance, this study recommends routine inspections, timely maintenance, and sediment management to prevent blockages. Additionally, upgrading drainage infrastructure, optimizing water flow through improved design, and implementing community-based maintenance programs are suggested to ensure long-term efficiency. These measures will help mitigate flooding risks and improve urban water management in Samarinda.
Analysis of the Piecework Pay System in Improving Work Performance Productivity in the Construction of SMK School Buildings in Caruban District, Madiun Regency Riyadi, Slamet; Tjendani, Hanie Teki; Wulandari, Esti
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.v2i12.320

Abstract

The application of the piece-rate wage system in construction projects has the potential to influence project timeliness and worker motivation. This study examines the effect of the piece-rate wage system on the completion efficiency of the SMK school building project in Caruban District, Madiun Regency. A quantitative approach was used, with multiple linear regression analysis conducted on data collected from 40 construction workers via questionnaires. The study analyzed the impact of wage systems, work communication, and work environment on labor productivity and motivation. The results showed that these three factors significantly influence the timely completion of construction work, with the piece-rate wage system playing a crucial role in enhancing worker performance. The findings highlight that implementing a structured piece-rate payment model, improving communication between workers and supervisors, and ensuring a conducive work environment can optimize labor efficiency. This study suggests that contractors and project managers should adopt clear wage agreements, provide incentives for quality work, and establish monitoring mechanisms to balance productivity with work quality.
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.
Analysis of Project Implementation Costs Using the Crashing Method in the Construction Work of Sunan Ampel Jombang Junior High School Venusia A, M. Fajar; 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.v3i5.479

Abstract

The development of educational infrastructure is a crucial aspect in supporting the improvement of the quality of learning and human resource development in Indonesia. However, in its implementation, construction projects often face challenges in the form of delays in completion and cost inefficiencies, which impact the disruption of the educational process and increase the budget. This study aims to analyze the cost efficiency and acceleration of the implementation time of the Sunan Ampel Jombang Junior High School construction project through the crashing method approach, which is a technique in project management used to accelerate project completion time by selectively adding resources to critical activities. The delay in the start of a project is the main problem faced by the implementers of the Sunan Ampel Jombang Junior High School construction project, resulting in delays in final completion and an inflated project value. Based on the analysis conducted, this study also provides solutions to overcome this. The results of the analysis of the Sunan Ampel Jombang Junior High School construction project show an additional cost of Rp. 163,845,745.00 from the normal work cost to Rp. 2,623,114,845.00, an increase of 0.93%. This research provides practical contributions for project managers and contractors in making strategic decisions related to controlling project time and costs and can be a reference in managing the risk of project delays in the future.
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.
Analisis Banjir Rancangan Metode HSS Laksono-Erub Nugroho, Laksono Djoko; Wulandari, Esti; Rumihin, Ony Frengky; Subroto, Tisno
COMSERVA : Jurnal Penelitian dan Pengabdian Masyarakat Vol. 5 No. 9 (2026): COMSERVA: Jurnal Penelitian dan Pengabdian Masyarakat
Publisher : Publikasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59141/comserva.v5i9.3512

Abstract

Prediksi banjir rancangan yang akurat merupakan kebutuhan mendasar dalam perencanaan infrastruktur pengendalian banjir dan manajemen sumber daya air. Penelitian ini bertujuan untuk membandingkan akurasi empat metode Hidrograf Satuan Sintetik (HSS) dalam memprediksi debit banjir rancangan di DAS Plumbon, Kabupaten Semarang, yakni metode HSS Nakayasu, Snyder, Gama I, dan Laksono-Erub, serta mengidentifikasi metode yang memberikan penyimpangan terkecil terhadap data debit observasi. Penelitian ini menggunakan pendekatan kuantitatif komparatif dengan data curah hujan harian maksimum tahunan periode 2010-2020 dari tiga stasiun hujan di sekitar DAS Plumbon (Stasiun Mangkang, Kaligawe, dan Gunungpati), serta data debit observasi dari Bendung Plumbon periode yang sama. Hasil penelitian menunjukkan bahwa metode HSS Laksono-Erub memberikan akurasi tertinggi dengan nilai RMSE = 8,45 m³/detik, MAPE = 12,3%, dan R² = 0,89, diikuti oleh metode Gama I (RMSE = 11,72 m³/detik, MAPE = 16,8%, R² = 0,82), Nakayasu (RMSE = 15,31 m³/detik, MAPE = 21,5%, R² = 0,74), dan Snyder (RMSE = 18,96 m³/detik, MAPE = 25,7%, R² = 0,68). Metode Laksono-Erub secara konsisten menunjukkan penyimpangan terkecil untuk semua kala ulang, dengan selisih rata-rata 10-15% terhadap debit observasi. Temuan ini mengonfirmasi bahwa metode Laksono-Erub, yang dikalibrasi berdasarkan karakteristik DAS di Jawa Utara dan Madura, memiliki aplikabilitas yang baik untuk DAS Plumbon yang memiliki karakteristik fisiografis serupa. Penelitian ini memberikan rekomendasi praktis bagi perencana dalam memilih metode HSS yang tepat untuk analisis banjir rancangan di wilayah dengan karakteristik DAS serupa, serta memperkuat basis validasi empiris metode Laksono-Erub di luar lokasi pengembangan aslinya.
Analysis of Clean Water Distribution Pipe Implementation Time Using Value Engineering Method in Rungkut Industri Surabaya Rois, Ahmad; Wulandari, Esti; Purnama, Jaka
Jurnal Teknik Indonesia Vol. 5 No. 1 (2026): Jurnal Teknik Indonesia
Publisher : Publica Scientific Solution

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58860/jti.v5i1.796

Abstract

Clean water distribution infrastructure projects in industrial areas face significant challenges related to cost efficiency and implementation time, which directly impact project sustainability and operational effectiveness. This study analyzes the cost and time efficiency of the clean water distribution system in the Rungkut industrial area, Surabaya, by applying the Value Engineering (VE) method. The main objective of this study is to evaluate and compare the performance of three commonly used types of pipes—namely HDPE (High-Density Polyethylene), uPVC (unplasticized polyvinyl chloride), and GI (galvanized iron)—to determine the most optimal alternative without reducing the function or quality of the clean water distribution system. Data collection was conducted through a combination of methods: distributing questionnaires to professional respondents in civil engineering and water installation fields, conducting direct interviews with project-related parties, and analyzing technical documents and costs from actual projects. The obtained data were analyzed using the Relative Importance Index (RII) method to assess key aspects such as cost efficiency, ease of installation, and material durability. The results showed that HDPE pipes offer superior cost and time efficiency compared to the others. The cost difference between HDPE and uPVC pipes is Rp1,407,577, while that with GI pipes is Rp731,885. In terms of time, HDPE pipes can reduce implementation duration by up to 39 days compared to uPVC pipes and by 9 days compared to GI pipes.
Co-Authors Adiputra, Reza Agus Firmanda, Yocky Ahmad Rois AJI SASONGKO, CHRISTIO Alves, Agata Maria Orleans Ardianto, Lukman Ariyanti, Menik Atwin Suyitno, Dwi Aziz, Ghufran Helmi Bagaskara, Femas Putra Brian V P, Andreas Budi Witjaksana, Budi Candra M, Alang Danang Dwi Nugroho Djoko Nugroho, Laksono Dozier, Alpha Ekawati, Ridania Fakhrurrozi, Muhamad Fathurokman, Hasan Alif Gatot Dwi Wahyono Gode, Dicky godinho, domingos Gomes, Orlando Guesa Maiwinda Hadi, Suprapto Hanie Teki Tjendani, Hanie Teki Hartawan, Ade Sholeh Hudyantoro, Hudyantoro Jaka Purnama Jamiludin, Jamiludin Jarwoto, Jarwoto John, Jenodius Aldino Laksono Djoko Laksono Djoko Nugroho Lina Yuliani Luis, Laurenco Maya Yusnita Muchamad Lutfi, Muchamad Muhammad Efendi, Muhammad Nailufar, Linda Naldi, Jepri Nopriyanto, Dwi Erry Nugroho, Laksono D. Nurrahmat, Ean Fadhillah Oetomo, Wateno Patriadi , Andi Patriadi, Andi Prasetiyo W., Arif Pratiwi, Sekar Harum Prayogo, Bela Purbo, Atma Djendra Putri, Mia Dewindi Rahmat Rahmat Rumihin, Ony Frengky Safitri, Dika Ayu Sajiyo Sajiyo, Sajiyo Saka, Candra Diri Septiana, Vini Wela Septoraharjo, Eko Rony Septria, Metriani Setiyo, Anugrah Dwi Setyarini, Ika Oktavia Slamet Riyadi Subroto, Tisno Sulistianto, Leo Agus Suprapto, Aki’ Supriyanto, Yunaidi Susanti, Dini Susetya, David Himawan Teki Tjendani, Hanie Umarwoko Daniarto, Cornelius Ummatus Sholikhah, Ummatus Venusia A, M. Fajar Widhajati, Eni Windarti Agustina Zakariya, Rony