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Jurnal Teknik Industri : Jurnal Hasil Penelitian dan Karya Ilmiah dalam Bidang Teknik Industri
Published by Universitas Islam Negeri Sultan Syarif Kasim Riau
ISSN : 2460898X     EISSN : 27146235     DOI : http://dx.doi.org/10.24014/jti
Core Subject : Science, Social, Engineering,
Computer Science & IT Decision Sciences, Operations Research & Management Engineering Environmental Science Industrial & Manufacturing Engineering
(ISSN : 2460-898X) JTI merupakan jurnal akademik yang dipublikasikan 2 kali setahun, meliputi bulan Juni dan Desember. Tujuan jurnal ini menyediakan tulisan yang memiliki yang fokus pada bidang Teknik Industri. lebih lanjut jurnal ini dipulikasikan oleh Jurusan Teknik Industri Fakultas Sains dan Teknologi Universitas Islam Negeri Sultan syarif Kasim Riau. Tulisan yang diterima merupakan hasil originalitas dan memberikan kontribusi yang belum pernah dipublikasikan sebelumnya.
Arjuna Subject : Teknik (semua kategori) - Tenik Industri dan Manufaktur
Articles 386 Documents
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Implementation of Data Mining to Classify Potential Customers Using the C5.0 Algorithm Rizki, Muhammad; Maghfirah, Cintya Nil; Norhiza, Fitra Lestari; Nofirza, Nofirza; Lubis, Fitriani Surayya
JTI: Jurnal Teknik Industri Vol 11, No 1 (2025): JUNI 2025
Publisher : Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/jti.v11i1.39167

Abstract

PT Pegadaian, as listed on its official website, is a fast-growing financial company. One of its key challenges is late installment payments, which can lead to financial losses. Using pawn customer data from 2013 to 2021, this study found that out of 534 customers, 68 were late in paying installments, and 10 did not pay. To address this issue, this research applies customer classification to identify borrowers who are more likely to pay on time. The classification model is developed using data mining with the C5.0 algorithm to generate decision-tree rules. Prior to modeling, the dataset is processed through the Knowledge Discovery in Databases (KDD) stages, including data selection, cleaning, and transformation. The proposed model produces 26 classification rules and achieves an accuracy of 87.04%. All data processing, modeling, and validation are conducted using RapidMiner Studio. Keywords: Classification, Decision Tree, C5.0 Algorithm, Data Mining
Analysis of Biomass Potential and Carbon Stocks on Various Vegetation Types in Trembesi City Forest and Putroe Phang City Forest in Banda Aceh Fadhilah Harahap; Sufardi Sufardi; Halim Akbar
JTI: Jurnal Teknik Industri Vol 12, No 1 (2026): Juni 2026
Publisher : Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/jti.v12i1.39247

Abstract

Urban forests play an important role in climate change mitigation by storing biomass and carbon. This study aims to analyze the potential of biomass and carbon stocks in various types of vegetation in the Trembesi City Forest and Putroe Phang City Forest in Banda Aceh. The study uses a quantitative descriptive approach through vegetation inventory, employing non-destructive sampling methods. Field data in the form of tree type, number of individuals, and trunk diameter are used to calculate biomass using allometric equations, then converted into carbon stocks. The results of the study show that the Trembesi City Forest has a higher biomass potential and carbon reserves than the Putroe Phang City Forest. This is influenced by the dominance of large-diameter, wide-headed trees, which contribute significantly to biomass accumulation. In contrast, the Putroe Phang Urban Forest has a more diverse vegetation structure, but is dominated by medium-sized trees, resulting in relatively lower biomass potential and carbon reserves. The findings of the study confirm that the size of the diameter of the tree is a major factor in determining the amount of biomass and carbon reserves. Thus, the presence of large trees in urban forests plays a strategic role in improving the area's ecological function as a carbon store and supporting the sustainability of the urban environment. Keywords: Biomass, Carbon Reserves, Urban Forests, Vegetation, Banda Aceh.
Systematic Literature Review on the Integration of Total Quality Management and Green Manufacturing in Enhancing Sustainable Manufacturing Competitiveness Nova Wisnianingsih; Nilda Tri Putri; Alizar Hasan; Franka Hendra
JTI: Jurnal Teknik Industri Vol 12, No 1 (2026): Juni 2026
Publisher : Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/jti.v12i1.39230

Abstract

Global pressures on the manufacturing industry to enhance competitiveness while simultaneously meeting sustainability demands have intensified the need for integrated managerial approaches. Total Quality Management (TQM) has long been recognized as a fundamental driver of organizational performance through continuous improvement and customer orientation, while green manufacturing has emerged as a key strategy for reducing the environmental impacts of production processes. However, existing literature indicates that these two approaches are often implemented in isolation, limiting their potential synergy in building sustainable manufacturing competitiveness. This article aims to conduct a Systematic Literature Review (SLR) to comprehensively examine the integration of TQM and green manufacturing and its contribution to enhancing manufacturing competitiveness. The SLR method was applied by reviewing peer-reviewed and reputable scientific publications from the past five years, including empirical studies, conceptual frameworks, and prior systematic reviews. The findings reveal that TQM functions as an organizational capability that facilitates the adoption of green manufacturing practices through the strengthening of quality culture, leadership commitment, and employee involvement. The integration of TQM and green manufacturing is shown to have a positive impact on sustainability performance, environmental performance, green innovation, and competitive advantage in manufacturing firms. This study contributes by developing an integrative conceptual framework that positions TQM as a strategic enabler of green manufacturing within the context of sustainable manufacturing competitiveness, while also identifying research gaps and future research agendas, particularly in developing countries.
An Integrated AHP–TOPSIS Model for Evaluating and Selecting Ship Docking Material Suppliers (Case Study: PT SMKU Tegal) Dida Diawara Vavanoli; Diana Puspita Sari; Hery Suliantoro
JTI: Jurnal Teknik Industri Vol 12, No 1 (2026): Juni 2026
Publisher : Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/jti.v12i1.39292

Abstract

This study aims to determine the priority of criteria and select the best supplier of ship docking materials at PT Samugara Multikarya Utama (PT SMKU) Tegal using the Analytical Hierarchy Process (AHP) and Technique for Order Preference by Similarity to Ideal Solution (TOPSIS) methods. The research employs a mixed methods approach, combining quantitative analysis through questionnaires to obtain criteria weights and supplier rankings, and qualitative analysis through interviews and field observations to understand operational conditions and company needs in the procurement process. The results indicate that the top priority in supplier selection is material quality (quality), which is the most crucial factor in supporting production continuity. The second priority is cost, followed by supplier service and reputation, production capacity and reliability, and delivery timeliness, which ranks last. Based on AHP-TOPSIS calculations, the best supplier for ship docking materials is PT Krakatau Posco as the first choice, followed by PT Samugara Multikarya Utama as the second choice, and PT Gunung Ciremai Sejahtera as the third choice. These findings highlight the importance of systematic, evidence-based evaluation of criteria to support efficient and consistent procurement decisions. This study demonstrates that the AHP-TOPSIS method can provide objective and rational supplier recommendations while enhancing the effectiveness of material procurement processes in the shipbuilding industry. Keywords: Supplier Selection, AHP-TOPSIS, Criteria Priority, Ship Docking Materials
Ergonomic Analysis and Redesign of Bus Handgrips Using Rapid Upper Limb Assessment (RULA) and Posture Evaluation Index (PEI) Veronika Chintia Dewi; Rifano Rifano; Gunawan Gunawan; Riza Phahlevi Marwanto
JTI: Jurnal Teknik Industri Vol 12, No 1 (2026): Juni 2026
Publisher : Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/jti.v12i1.39493

Abstract

This study aims to analyze and improve the ergonomic performance of bus handgrips on Metro Jabar Trans using an integrated approach combining Rapid Upper Limb Assessment (RULA) and Posture Evaluation Index (PEI). The research employed a quantitative method involving 30 respondents, with data collected through observation, interviews, joint angle measurements, and anthropometric analysis. A virtual simulation was developed using Jack 8.4 software to evaluate ergonomic conditions based on RULA, Lower Back Analysis (LBA), and Ovako Working Posture Analysis System (OWAS), which were then integrated into the PEI metric. The results indicate that the existing handgrip design produces RULA scores predominantly at levels 5–6, reflecting moderate ergonomic risk, with PEI values ranging from 1.358 to 1.875, indicating suboptimal conditions. A redesigned handgrip was developed by optimizing key dimensions, including width, diameter, and finger clearance, based on anthropometric data. Simulation results demonstrate a consistent reduction in ergonomic risk, with PEI values decreasing to a range of 0.925 to 1.221. The reduction in PEI values, ranging from 0.233 to 0.903, confirms improved postural conditions and reduced risk of musculoskeletal disorders. These findings highlight that integrating posture assessment and quantitative ergonomic indices can effectively support the development of safer and more comfortable public transportation facilities.
Adaptive Strategy and Sustainability in the National Fertilizer Industry under VUCA Conditions: A Systematic Literature Review and Bibliometric Analysis Niera Feblidiyanti; Ahmad Syafrudidin Indrapriyatna; Elita Amrina; Franka Hendra
JTI: Jurnal Teknik Industri Vol 12, No 1 (2026): Juni 2026
Publisher : Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/jti.v12i1.39409

Abstract

The national fertilizer industry faces volatile energy and raw-material prices, global supply disruptions, policy uncertainty, subsidy pressures, and rising decarbonization expectations. This study reviews recent literature on adaptive strategy and sustainability in the fertilizer industry under volatile, uncertain, complex, and ambiguous (VUCA) conditions. A systematic literature review following PRISMA 2020 was combined with bibliometric analysis using bibliometrix/Biblioshiny. The final search was conducted on 10 December 2025 in Scopus and ScienceDirect for publications from 2020 to 2025. A total of 824 records were identified, 63 duplicates were removed, 761 titles and abstracts were screened, 173 records were retained for bibliometric mapping, and 23 full-text articles were selected for in-depth synthesis. An extended literature review matrix of 164 cleaned articles was used to triangulate themes, methods, and research gaps. The results show that sustainability, low-carbon fertilizer transformation, supply chain resilience, digital transformation, adaptive strategy, and VUCA-driven uncertainty dominate the literature, but their integration into a strategy-oriented framework remains limited. The novelty of this study lies in developing an integrative framework linking VUCA pressures, dynamic capabilities, supply chain resilience, adaptive strategic responses, and sustainability performance for national fertilizer industry transformation
Evaluation of the Skin Cracker Production Process at Skin Cracker SMEs Ahmad Syafruddin Indrapriyatna; Reinny Patrisina; Asi Siva Dea; Nahda Sulasi; Yonithri Sherlyn
JTI: Jurnal Teknik Industri Vol 12, No 1 (2026): Juni 2026
Publisher : Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/jti.v12i1.39000

Abstract

XYZ SME is a small and medium enterprise (SME) based in Padang, West Sumatra, specializing in traditional skin crackers (locally known as kerupuk jangek a traditional cowhide-based cracker). The company faces critical challenges related to hygiene and production inefficiencies, particularly delays during drying and frying stages, as well as inefficient material flow due to a suboptimal facility layout. This study employs Lean Manufacturing tools to identify and reduce production waste. The methodology incorporates the Waste Assessment Model (WAM) to quantify waste types, Value Stream Mapping (VSM) to visualize the production process, and Value Stream Analysis Tools (VALSAT) to prioritize improvement strategies. WAM analysis identified transportation (21.277%), inventory (17.021%), and waiting time (14.894%) as the most significant waste categories. The initial Process Cycle Efficiency (PCE) was measured at 41.82%. Improvement proposals included enhanced GMP practices through training, supervision, and infrastructure upgrades, as well as production efficiency measures such as layout redesign, improved worker discipline, and the use of cost-effective machinery. These interventions led to a projected PCE of 95.24%, indicating substantial improvements in workflow efficiency.
Supply Chain Performance Analysis of Construction Materials in the Core Government Center (KIPP) Development Project in Nabire Using the SCOR Method Agung Nugroho
JTI: Jurnal Teknik Industri Vol 12, No 1 (2026): Juni 2026
Publisher : Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/jti.v12i1.39410

Abstract

This study aims to analyze the performance of the construction material supply chain in the Government Core Area (KIPP) development project in Nabire, Central Papua, using the Supply Chain Operations Reference (SCOR) method. The novelty of this research lies in its empirical application of SCOR to a government infrastructure project in a geographically remote region, addressing an underexplored research gap in the existing literature. A mixed-methods design was employed, with structured questionnaires (5-point Likert scale) administered to 32 purposively selected respondents representing key supply chain stakeholders. The instrument was validated using Pearson correlation and tested for reliability using Cronbach's Alpha. Performance was measured across five SCOR processes: plan, source, make, deliver, and return. Validity testing confirmed all 31 items were valid (r calculated > r table = 0.349), and all processes were reliable (α = 0.767–0.813). Performance measurement results indicate that all five SCOR processes fall within the Moderate category: Plan (Mean=3.34; SD=0.888), Source (Mean=3.38; SD=0.886), Make (Mean=3.40; SD=0.893), Deliver (Mean=3.45; SD=0.831), and Return (Mean=3.34; SD=0.937). Key constraints include dependence on external suppliers, suboptimal port and road infrastructure, and coordination gaps among stakeholders. Recommended improvement strategies include supplier diversification, adoption of supply chain information systems, logistics optimization, and development of local material sources.  Keywords: Supply Chain Performance, Construction, SCOR 
A Sustainability-Based Occupational Safety Risk Prioritization Model for High-Rise Building Maintenance Using HIRARC and AHP Emma Budi Sulistiarini; Evi Yuliawati; Diky Siswanto; M. Ashlyzan Bin Razik; Bambang Suhardi
JTI: Jurnal Teknik Industri Vol 12, No 1 (2026): Juni 2026
Publisher : Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/jti.v12i1.39282

Abstract

High-rise building maintenance involving work at height presents significant occupational safety risks, particularly fall-related incidents that may result in severe injuries, operational disruptions, and financial losses. Conventional risk assessment approaches such as Hazard Identification, Risk Assessment, and Risk Control (HIRARC) primarily rely on technical likelihood–severity scoring and do not explicitly incorporate sustainability consequences into risk prioritization. This study develops a sustainability-based occupational safety risk prioritization model for high-rise building maintenance by introducing a Sustainability Risk Priority Index (SRPI) that integrates HIRARC-based technical risk scores, Triple Bottom Line (TBL) weighting derived from the Analytic Hierarchy Process (AHP), and hazard-level sustainability impact assessment. Unlike conventional approaches that prioritize hazards primarily based on technical risk magnitude, the proposed SRPI provides a composite prioritization framework that also captures People, Planet, and Profit consequences in measurable terms. The model was demonstrated through a case study of a three-story laboratory building that identified six hazards. The results show that falls from the rooftop edge and falls from a narrow canopy platform remain the highest technical risks (R = 20). The AHP weighting yielded People = 0.60, Profit = 0.25, and Planet = 0.15, with a Consistency Ratio (CR) of 0.07. The proposed model differentiates medium-level hazards more clearly by incorporating sustainability consequences while preserving the dominance of hazards with potentially fatal outcomes. Sensitivity analysis with ±10% variation in the People weight indicates that the highest-priority hazards remain stable across scenarios. Keywords: Occupational safety; Sustainability risk prioritization; HIRARC; AHP; High-rise building maintenance
Evaluation of Vehicle Component Maintenance and Care Strategy using The Reliability Centered Maintenance Method Fitria Arumning Sukma; Sugianto Sugianto
JTI: Jurnal Teknik Industri Vol 12, No 1 (2026): Juni 2026
Publisher : Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/jti.v12i1.39532

Abstract

This study aims to evaluate the vehicle maintenance strategy at PT XYZ, an intercity bus operator (AKAP) managing a mixed fleet consisting of Hino RK, Hino RM, and Mercedes-Benz units, and to develop an optimized preventive maintenance schedule for critical wheel system components. A quantitative descriptive approach was applied using historical failure data from January 2024 to December 2025 which recorded 1,299 incidents. The Reliability Centered Maintenance (RCM) method was employed by integrating Pareto analysis for critical system identification, Failure Mode and Effects Analysis (FMEA) for risk prioritization, Logic Tree Analysis (LTA) for failure classification, and Mean Time Between Failure (MTBF) calculation to determine maintenance intervals. The wheel system was identified as the most critical system with a contribution of 403 failures or 31.02 percent. FMEA revealed that the Hino RK fleet carries the highest risk, with bearing and wheel hub reaching maximum RPN values of 512 and 504 respectively. Five components were classified as Safety Problems (Category A) and the wheel seal as a Hidden Failure (Category D). MTBF based intervals range from 59 days for the RK fleet tire to 2,693 days for the RK fleet rim, with tire inspection being the most frequent maintenance requirement across all fleet types. Implementation of an RCM based preventive maintenance regime using a Condition Directed (CD) strategy for five detectable components and a Time Directed (TD) strategy for the wheel seal offers a structured transition from the existing reactive system. The findings provide fleet specific maintenance schedules and cost estimates that support reduced unplanned downtime, improved safety compliance, and optimized maintenance expenditure for AKAP bus operators.  Keywords: Bus Maintenance, FMEA, Logic Tree Analysis, MTBF, Reliability Centered Maintenance

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