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INDONESIA
Jurnal Sistem dan Manajemen Industri
Published by Universitas Serang Raya
ISSN : 25802887     EISSN : 25802895     DOI : -
Core Subject : Engineering,
Engineering Industrial & Manufacturing Engineering Transportation
This journal aims to publish the results of research in the field of Industrial Engineering is published twice a year, managed by the University of Serang Raya. The scope of Sciences covers Operations Research, Manufacturing System, Industrial Management, Ergonomics and Work System, Logistics and Supply Chain Management, and other scientific studies in accordance with scope field of Industrial Engineering research.
Arjuna Subject : -
Articles 256 Documents
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Analyzing operational risks of a recyclable waste-based payment public transit system in Surabaya, Indonesia Anityasari, Maria; Wessiani, Naning Aranti; Pratiwi, Atikah Aghdhi; Putri, Fathaliati Zikri Musev; Rinardi, Hilmi Cahya; Prakoso, Matheus Bimo Aryo; Ghaisani, Nofinda
Jurnal Sistem dan Manajemen Industri Vol. 9 No. 1 (2025): June
Publisher : Universitas Serang Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30656/jsmi.v9i1.10203

Abstract

Suroboyo Bus, a municipal public transportation initiative managed by the Surabaya Department of Transportation (SubDOT) in Indonesia, was launched to promote the use of public transit by accepting recyclable plastic waste as transit fare payments. However, this transportation system presented challenges, as prior to 2019, Suroboyo Bus performed its operational activities without adequately incorporating operational risk, specifically considering Health, Safety, and Environment (HSE) factors. The analysis of risk profiles and a mitigation plan concerning the well-being of both their staff and passengers was uncomprehensive. To address these issues, this paper evaluates the operational risk based on ISO 31000:2018, the Failure Mode and Effect Analysis (FMEA), and the Benefit Cost-Analysis (BCA). The analysis identified 114 risks and 189 combinations of risks and impacts across 70 business processes associated with Suroboyo Bus operations, with varying degrees of risk severity. Risk prioritization analysis was performed using the Pareto 80:20 principle. Proposed risk response strategies include avoidance, mitigation, transfer, and tolerance. Evaluation of the feasibility of these strategies through benefits and cost analysis, supplemented by a sensitivity analysis, revealed Benefit-Cost Ratio (BCR) values ranging from 1.041 to 1.471, indicating that the proposed mitigation plan is feasible for all evaluated scenarios. These findings underscore the importance of implementing risk mitigation measures to improve the sustainability and effectiveness of the Suroboyo Bus service. Future research should explore the digital application developed for Suroboyo Bus passengers as part of the business process named “Golek Bis” (GOBIS) and other methods that can be used to enhance the quality and comprehensiveness of risk management.
Innovative canting: A triz approach to improve traditional batik production process in small and medium enterprise Immawan, Taufiq; Pratama, Fauzan Mahardika; Rofif, Muhammad Iqbal; Waskita, Farid Agung; Maghfiroh, Meilinda Fitriani Nur
Jurnal Sistem dan Manajemen Industri Vol. 9 No. 1 (2025): June
Publisher : Universitas Serang Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30656/jsmi.v9i1.10250

Abstract

This research aims to improve the efficiency of the canting tool used in the Batik-making process in Giriloyo Village. One of the main issues identified is the suboptimal size of the canting spout, which causes wax blockages due to dirt particles. This study employs TRIZ tools, including Function Analysis, to identify problems, develop innovative solutions to the issues, and develop solutions that address contradictions in the canting system. The analysis results indicate that several inventive principles, such as Merging, Beforehand Cushioning, Segmentation, and Feedback, can enhance the canting tool's performance. Proposed solutions include adding a heater, filter, flow regulator, and interchangeable canting spouts to meet different needs. These solutions can accelerate the Batik-making process, reduce production costs, and enhance market competitiveness. However, further verification is required to validate the proposed design's superiority over traditional canting tools. This research opens opportunities for further development in Batik tool innovations to enhance the sustainability of the Batik creative industry in Indonesia.
A comparison allocation of labor qualification on real, plan, and regulation calculation using resource-leveling method Servanty, Izmanaya Avril; Putra, I Nyoman Dita Pahang; Soetanto, Robby
Jurnal Sistem dan Manajemen Industri Vol. 9 No. 1 (2025): June
Publisher : Universitas Serang Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30656/jsmi.v9i1.10273

Abstract

Labor is a crucial resource in industrial construction projects. A common issue is the uneven number of laborers who are overallocated. This study uses the resource-leveling method to compare and determine the optimal number of labor and project duration based on plan, real, and regulation conditions. In this study, the data required in real conditions is obtained from daily report data. In planned conditions, data is obtained from the scheduled manpower made by the contractor, while in conditions based on regulations, the calculation of the number of laborers uses the coefficient values listed in the Regulation of the Minister of Public Works and Public Housing No. 1 of 2022. This research is measured through disparity values, which show an imbalance in the allocation of labor caused by the uneven allocation of labor based on its workload. The results showed a significant difference in the number and distribution of labor. Regulation conditions resulted in higher labor numbers due to detailed calculations on each type of work and labor qualifications. The highest disparity occurs in workers, with a value of 0.93 in the plan condition and -0.51 in the regulation condition. The resource leveling helped balance labor allocation but increased project duration from 98 to 112 working days. These findings provide practical insights for project managers to optimize worker planning and distribution, improve efficiency, and reduce overallocated risks.
mplementation of lean manufacturing to enhance the efficiency of acrylic resins production process Sahrupi, Sahrupi; Dwiputra, Gerry Anugrah; Chasanah, Uswatun
Jurnal Sistem dan Manajemen Industri Vol. 4 No. 1 (2020)
Publisher : Universitas Serang Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30656/jsmi.v4i1.1488

Abstract

High lead time processing of acrylic resins leads to the production of products to consumer undergoes and high-production costs. This study aims to reduce lead time by analyzing various activities that have value-added, non-value-added, and necessary non-value-added. The research is conducted using lean manufacturing approaches on acrylic resin production processes. The analysis shows that the activity of delay and transportation is a contributor of waste that occurs in the production process of acrylic resins. Improvements by minimizing both activities in the are thining tank, reactor, and monomer tank can increase the efficiency of the production process. The improvement results show a decrease in lead time from 1298 minutes to 1075 minutes. This study demonstrates that lean manufacturing can improve the time process efficiency of 17.18%, which means the output ratio will increase by around 17.18% in a process.
Design of tools to reduce the risk level of work postures at warping station Wardani, Indira Kusuma; Iftadi, Irwan; Astuti, Rahmaniyah Dwi
Jurnal Sistem dan Manajemen Industri Vol. 4 No. 1 (2020)
Publisher : Universitas Serang Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30656/jsmi.v4i1.1997

Abstract

Based on the REBA analysis, there is a risky operator work postures in the warping work station at PT. Iskandar Indah Printing Textile because they do not use work tools. The assessment of the level of work posture risk by the REBA method gets the result that the highest work element with a final score of 10 is obtained by taking warp yarn at the warping station. This study aims to produce a design tool to reduce the level of work posture risk in warping work station operators. Then the design of tools was carried out by the Pahl and Beitz method to produce three alternative product design concepts. Based on the three ideas, the best plan is chosen by using an Engineering Design Selection, and the result is the second design concept. The selected design is an adjustable trolley with a vertical screw drive system that is comfortable to use and does not cause a bending position on the operator because it has a trolley plate that can be adjusted in height as needed. The use of the trolley causes a decrease in the level of work posture risk from a high-risk level to a small risk level with a final score of 10 to 3.
Balancing a multistage vehicle number plate production line using effective cycle time model Nwanya, Stephen C.; Achebe, Celestine N.
Jurnal Sistem dan Manajemen Industri Vol. 4 No. 1 (2020)
Publisher : Universitas Serang Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30656/jsmi.v4i1.2118

Abstract

Shortest product cycle time is a key criterion for job sequencing and measuring competitiveness among entrepreneurial-based firms. Now, the long waiting time of job orders constitutes a deterministic production line problem in vehicle number plate production plants in Nigeria. Case studies were conducted on those plants, confidentially identified in this paper as A, B, C, and D. Delays caused by non-value-adding work processes are major culprits among other contributors to the long queues at these plants. The value stream mapping technique was applied to identify non-value adding activities before the production line was balanced using an effective cycle time model. The index cases to a balanced line, as shown in the results, are increases in process rate by 41 %, 59 %, 42 %, and 71 % for A, B, C, and D, respectively, and overall line efficiency. Next, the system capacities correspondingly increased with the elimination of wastages. These increments imply that bottleneck activities have been minimized, and we have a balanced production line. The devised solution procedure is reliable and recommended to other line manufacturing concerns that experience delays and bottleneck problems.
The fuzzy goal programming approach to production planning of intermediate gear spare parts: a case study Ishak, Aulia; Nababan, Poltak
Jurnal Sistem dan Manajemen Industri Vol. 4 No. 2 (2020)
Publisher : Universitas Serang Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30656/jsmi.v4i2.2143

Abstract

Production planning has an important role in the company's business processes. A company engaged in the manufacture of intermediate gear parts has a problem in optimizing its production system. The production planning system that occurs is still based on predictions from decision-makers. This study aims to optimize the production planning system to maximize the 15T intermediate gear spare parts' production capacity and the 30T intermediate gear spare parts. Optimization of production planning uses the fuzzy goal programming method to optimize objectives based on existing constraints such as working hours, profit tolerance values, and demand tolerance values. The results showed that the use of fuzzy goal programming was able to increase the production level by 2.765, with an increase in profit of 2.57%. Fuzzy goal programming implementation provides an optimal solution in increasing profits in accordance with company goals based on the constraints that occur.
Perbaikan Metode Kerja untuk Meningkatkan Line Efficiency dengan Konsep ECRS Pertiwi, Asariella Findya Octa; Astuti, Rahmaniyah Dwi; Asariella Findya Octa Pertiwi; Rahmaniyah Dwi Astuti
Jurnal Sistem dan Manajemen Industri Vol. 4 No. 1 (2020)
Publisher : Universitas Serang Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30656/jsmi.v4i1.2184

Abstract

The Assembly line is the assembly process that is carried out based on the order of the production process in the production line. The problem that is often found in assembly lines is bottleneck conditions where some material piled up at the station. This situation indicates an imbalance in the production line. The improvement of the work method is one of the effective ways that can increase line efficiency. This study presents an increase in line efficiency by improving working methods in a washing machine assembly line of PT.X. The study aimed to increase the value of line efficiency by improving work methods. In this study, improvements were made using the line balancing method and Eliminate, Combine, Rearrange, Simplify (ECRS) concept. The results that have been done, the obtained value of line efficiency for washing machine products is 76.76%. This value has not reached the company's productivity target of 99.50%. Therefore it is necessary to improve the assembling line to increase the value of product production. The proposed improvements made with improvements to the work methods on the assembling line obtained 89.38% results is to increase the amount of line efficiency by improving work methods.
Plan do check action (PDCA) method: literature review and research issues Isniah, Sarah; Hardi Purba, Humiras; Debora, Fransisca
Jurnal Sistem dan Manajemen Industri Vol. 4 No. 1 (2020)
Publisher : Universitas Serang Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30656/jsmi.v4i1.2186

Abstract

The development of the industry that is increasingly making businesses try to be competitive by increasing technical knowledge and improving systems both internally and externally. PDCA is a quality management system that is used as a continuous improve­ment tool that is widely used in the service and manufacturing sectors. PDCA activities consist of four steps namely Plan, Do, Check, and Action with repeated stages forming like a circle. PDCA is a continuous improvement tool that is widely used in the services and manufacturing sector. The cycle of PDCA begins with small to check possible effects on systems, but then eventually progresses to larger and more specific improvements. The results of the implementation PDCA method can be used to solve the problems of qualitative and quantitative data problems that have been widely applied in the service and manufacturing sectors for continuous improvement and as a work pattern in improving a process or system in an organization and increasing productivity. The method used in this research is the literature review research paper has been published in 2015-2020 that have consistently applied the PDCA cycle. The result of this literature review is to describe the relationship between thinking or gaps in theoretical and practical thinking about the application of the PDCA method and the successful implementation in the service and manufacturing sectors as a contribution to further research.
Waste analysis of fuselage assembly in panelization group of the 117th NC212i aircraft Pomalia, Frisca; Iftadi, Irwan; Astuti, Rahmaniyah Dwi
Jurnal Sistem dan Manajemen Industri Vol. 4 No. 1 (2020)
Publisher : Universitas Serang Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30656/jsmi.v4i1.2187

Abstract

Dirgantara Indonesia (PTDI) is the single source producer of the NC212i Aircraft. Almost every Aircraft is delivered to the customer over the deadline date. The existence of waste is believed to be one of causing the late delivery. Based on observations of the 117th NC212i Aircraft assembly line, which is precisely at the fuselage assembly in the paneling group, six wastes are identified: waiting, transportation, overprocessing, inventory, and motion. Waste of overproduction does not occur because PTDI applies MTO (Make to Order) system. These 6 wastes are then processed using Waste Assessment Model (WAM). The ranking result is: first place is 25% for defects, second place is 23% for waiting, third place is 17% for motion, fourth place is 15% for inventory, fifth place is 13% for transportation, sixth place is 8% for overprocessing, and seventh place is 0% for overproduction. Three critical wastes based Pareto principle can be minimized, so the delay of aircraft delivery can be reduced.

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