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All Journal Majalah Ilmiah Matematika Komputer Majalah Ilmiah Ekonomi Komputer Industrial and Systems Engineering Assessment Journal (INASEA) Jurnal Ilmiah Teknik Industri Jurnal Teknik Industri: Jurnal Keilmuan dan Aplikasi Teknik Industri Jurnal Sistem Teknik Industri Journal of Industrial Engineering Jurnal Ilmu Administrasi: Media Pengembangan Ilmu dan Praktek Administrasi International Journal of Engineering, Technology and Natural Sciences (IJETS) BERNAS: Jurnal Pengabdian Kepada Masyarakat JRABA Review of Accounting and Business Riset Ilmu Manajemen Bisnis dan Akuntansi Jurnal Ilmu Administrasi: Media Pengembangan Ilmu dan Praktek Administrasi Jornal Of Tourism Sciences (Toursci) Journal Of Medicine And Health Sciences (Medisci) Journal Of Economic Sciences (Ekuisci) Journal Of Agriculture Sciences (Agrosci) Journal of Community Service (Abdisci) Journal Of Engineering Sciences (Improsci)
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Jurusan Teknik Industri, Fakultas Teknologi Industri, Universitas Katolik Parahyangan
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Journal : Journal Of Engineering Sciences (Improsci)

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Proposed Service Quality Improvement at Aya Travel using SERVQUAL Method and Importance Performance Analysis Matthew Ramandri, Andreas; Susanto, Sani; Yusuf W, Yogi
Jurnal Improsci Vol 1 No 6 (2024): Vol 1 No 6 June 2024
Publisher : Ann Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62885/improsci.v1i6.309

Abstract

Intercity travel is a transportation service that facilitates movement between cities and cities. Aya Travel is here to facilitate transportation between Bandung and Depok. Aya Travel was established in 2005 with a fleet of 16 units. As time passes, there are travel competitors whose presence makes the sales of Aya travel departure tickets decline in 2016. This can be caused by the quality of other travel services being better than Aya Travel, so lately, people have switched from Aya Travel. The phenomenon is that what Aya travel consumers expect is not what they receive. Service quality measurement is carried out to respond to the above phenomenon using SERVQUAL. In the process, initial attributes from literature studies and Critical Incident Techniques were collected. After the attributes are collected, the questionnaire is distributed. The Factoring process is carried out to produce factors that are formed so that it is easier for Aya Travel to find out in which dimension it turns out that the quality of the service is inferior. After the SEVQUAL measurement process, an important Performance Analysis process was carried out to find improvement priorities from Aya Travel. The IPA method will map attributes into quadrants to produce priorities ranging from those that must be improved immediately to those that do not add value to the quality of Aya Travel's services. A Factor Analysis was produced from 22 attributes grouped into four factors, and it turned out that the display factor had the worst idea. The measurement of Aya travel service quality produces six attributes that need to be improved, which are those in the second quadrant (Consternate here) in the IPA diagram. For the proposed improvement, a discussion was carried out with Aya Travel so that the improvement proposal could be under the opinions and input of Aya Travel.
Application of The Rapid Entire Body Assessment (REBA) Method to Improve Work Safety in The Automotive Spare Parts Industry Fathurohman, Muhamad; Sukapto, Paulus; Susanto, Sani
Jurnal Improsci Vol 2 No 1 (2024): Vol 2 No 1 August 2024
Publisher : Ann Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62885/improsci.v2i1.402

Abstract

This industry consists of companies engaged in metal processing and workmanship. Companies often receive complaints from employees concerning pain or discomfort in their bodies, causing diseases such as low back pain and myalgia. The risk of accidents occurring at work is inseparable from the work done. Work-related accidents can occur due to several factors, including unsafe action. One cause of unsafe actions can be found in various unsafe work postures that workers assume. Therefore, the purpose of this study is to evaluate the posture of these workers so that it can improve their safety and health. This research was conducted by identifying occupational risks workers face and examining work performed in stamping products. The production section consists of six stations: material handling, stamping, welding, hemming, painting, and packing. The work risks run by workers have been identified using the Nordic Body Map (NBM) questionnaire and interview methods. As for the identification of the type of work carried out by evaluating work postures, the Rapid Entire Body Assessment (REBA) method has been employed. The risk level of accidents is also used for the selection of activities to be improved to minimize the level of injury risk caused by work postures that have been assumed, and in order to improve the safety and health of the workers. Improvements made are in engineering, such as manufacturing of assistive devices, and management engineering, such as providing directions that can improve the specific work posture used. Calculations are based on simulations performed with tools conducted with suggested postures by evaluation using the REBA method. Based on the results of REBA calculations, the resulting risk is lower than the one caused by the previously assumed posture, namely medium and low.
Application of Participatory Ergonomic Method to Reduce Musculoskeletal Disorders With Rapid Whole Body Assessment (REBA) at PT. Adyawinsa Stamping Industries Sukapto, Paulus; Susanto, Sani; F. Rohman
Jurnal Improsci Vol 2 No 1 (2024): Vol 2 No 1 August 2024
Publisher : Ann Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62885/improsci.v2i1.471

Abstract

PT. Adyawinsa Stamping Industry is one of the automotive companies in Karawang, West Java. In the production process, most of the work has poor posture, which can cause VascularDisorders (MSDs). In the process of eliminating and reducing the risk of MSDs in the workplace, the level of MSD risk experienced by workers is calculated using the REBA method. The results of the REBA calculation obtained several activities with values above 9 (meaning that an improvement is needed). To improve the work system using the Participatory ergonomic (PE) method involving the operator, management and ergonomics. The results of the application of PE in helping to reduce the risk level of MSDs are engineering (making auxiliary tools and also management engineering) that can improve the work posture used, namely using the REBA method. Based on the results of the REBA calculation after the improvement, the risk generated is a risk level smaller than the previous posture, namely medium and low. Real improvements are hoped to create a safe, comfortable, and productive workplace.
Design of a Round Tofu Printer Using the Ergo-Product Design Method : (Case Study: Mr. Andi’s Tofu Factory Palembang) Setiawan, Heri; Susanto, Sani; Rinamurti, Micheline; Alfian, Achmad; Pratama, Yohanes Dicka; Budiarto, Dominikus
Jurnal Improsci Vol 2 No 4 (2025): Vol 2 No 4 February 2025
Publisher : Ann Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62885/improsci.v2i4.614

Abstract

Background. Tofu is the familiar Indonesian food. It is crucial to produce Tofu effectively and efficiently. Aim. This research aims to help Mr Andi's tofu factory in Palembang, which has problems with the round tofu wrapping process. Workers are often absent due to specific events, which causes the owner to experience difficulties in producing round tofu. The processing time will be slower than usual, and the owner will have to hire spare tofu wrappers with more expensive wages. This round tofu maker is designed for Mr Andi's tofu factory. Methods. The research method applies ergonomics in product design (Ergo-Product Design), which applies the AT, SHIP approach, and anthropometry. Result. The research result is a tool made based on the dimensions of round tofu, size 6.25x6.25x4 cm3. The cover, base, and pressing cloth size is 50x50x3 cm3. The core part consists of a wooden part measuring 50x50x10 cm3 and a small square inner part of aluminum measuring 6.25x6.25 cm2. The fabric presses are the same size but added with small nails made of ¾-inch mild steel positioned right in the center of each small square in the core. Conclusion. The tool manufacturing cost is 560,000 IDR, and the maintenance cost is 10,000 IDR per month. Break event point in 13,728 units or 8,227,778 IDR and payback period in 2 days. Regarding environmental aspects, liquid waste from the tofu filter still exists because it does not change the production process. Worker energy becomes lighter, down 32 kcal/hour. Implication. The tofu packaging process time is faster, and the amount of production is more significant.
Cabinetware Employee Work System: Case Study at CV Diamond, Bandung, Indonesia Nuzulan, Faza Firdaus; Shafira Putri, Adeela; Daniel Godjali, Vincentius; Archer, Raphael; Susanto, Sani; Yogasara, Thedy
Jurnal Improsci Vol 2 No 4 (2025): Vol 2 No 4 February 2025
Publisher : Ann Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62885/improsci.v2i4.628

Abstract

Background. The problems found in CV Diamond Cabinetware stem from the fact that all production activities for furniture and door handles are carried out using human labor, assisted by several machines. The factory's machines include bending, pounding, stamping, drilling, grinding, and hand shears. Aim. This study evaluates the current work system and designs ergonomic improvement solutions to reduce the risk of musculoskeletal disorders (MSDs). Data were collected through direct observation, semi-structured interviews, and workers completing the Nordic Body Map questionnaire. Methods. The risk analysis was carried out using the Rapid Entire Body Assessment (REBA) method, and the results showed a high level of ergonomic risk at specific workstations. Results. Based on the analysis results, improvements were made to ergonomic chairs and tables using SolidWorks software. Proposed improvements were evaluated through Human CAD simulations using CATIA V5 to assess the effectiveness of the design in reducing the risk of injury. Conclusion. The study's results show that the proposed ergonomic design has improved work posture, reduced physical stress, and improved employee comfort. Implementation. This study makes an essential contribution to the application of ergonomics in small-medium industries and is expected to be a reference for developing healthier and more productive work systems.
Effects of Energy Drink Types on Male and Female Drivers in an Effort to Reduce Drowsiness While Driving Jovan Kurnia, Christopher; Siswanto, Daniel; Susanto, Sani
Jurnal Improsci Vol 1 No 4 (2024): Vol 1 No 4 February 2024
Publisher : Ann Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62885/improsci.v1i4.186

Abstract

Energy drinks are stimulants that men or women generally use to handle sleepiness while driving with sleep deprivation. There is no study about energy drink’s effect on gender. This study aims to learn about energy drinks in different genders while driving with sleep deprivation. Research is done using a laboratory approach using a driving simulator. Ten men and ten women were participants (21 ± 0.95 years). Participants were asked to drive for 90 minutes, and before driving the simulator, participants drank coconut water or Kratingdeng based on the planned order. PVT measured awareness before and after participants used the simulator. Dependent variables measured are mean RT, %minor lapses, and mean 1/RT. EEG evaluated sleepiness during the driving session. Based on ANOVA, energy drinks did not influence mean RT (p-value = 0,088), mean 1/RT (p-value= 0,058), %minor lapses (p-value =0,571), and EEG (p-value = 0,348). Meanwhile, EEG measured sleepiness and was only influenced by gender (p-value = 0,048). Based on the test, there is no difference between the two energy drinks. It is caused by an energy drink’s material that gives the body the same stimulant level. There is a difference in Mean 1/RT between gender and energy drinks. It is caused by composition such as potassium in coconut water or taurine and caffeine in Kratingdeng. The research shows that energy drinks do not influence awareness and sleepiness while driving for 90 minutes. However, energy drinks give different results in awareness of different genders.
Room Steering Temperature Determination with Variable Concerned of Driver Conditions Who are Sleep Deprived and Road Condition Ferdinand, Ryan; Siswanto, Daniel; Susanto, Sani
Jurnal Improsci Vol 1 No 5 (2024): Vol 1 No 5 April 2024
Publisher : Ann Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62885/improsci.v1i5.234

Abstract

Among the main reasons for the high death rate worldwide are traffic accidents. The most common cause of road accidents is driver fatigue. Not getting enough sleep is one thing that makes people tired. A study on how sleep-deprived sleep-deprived drivers felt about themselves was conducted, and the results showed that they were tired. A potential preventive measure against the driver's extreme weariness is the room steering temperature. The goal of this research is to find the room temperature range that produces the most minor drowsiness is this research's goal. The research used six treatments in a 40-minute driving simulator: hot, cold, pleasant room temperature steering, and monotonous and non-monotonous road conditions. With the Electroencephalogram, one may measure one's state of sleepiness by monitoring brain wave activity. Six treatments were administered to each of the study's four young adult male participants. Teta, alpha, and beta wave powers are derived by processing data from brain wave activity using Matlab R2009A. An ANOVA test is used to discover which factors affect the degree of drowsiness by using the ratio of sleepiness level, which is determined using the equation (θ + α) /β. ANOVA test results indicated that while road conditions and room steering temperature impacted sleepiness, their interaction had no effect. Just the hot-cold level is found to be significantly different by the Tukey and Newman Keuls tests. For sleep-deprived drivers, the temperature differences between hot and cold conditions result in varying drowsiness. The research's practical conclusion is that, for sleep-deprived drivers, a hot temperature range (>26°C–29°C) can result in the lowest level of tiredness.
Terje Aven Availability Model Application to the N-1 System with One Unit of Backup Towing Motor Components for Kiln Machine Preventive Maintenance Adianto, Hari; Nashar, Gifari Bayu; Susanto, Sani; Syah Tjaja, Arief Irfan
Jurnal Improsci Vol 2 No 2 (2024): Vol 2 No 2 October 2024
Publisher : Ann Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62885/improsci.v2i2.492

Abstract

The kiln machine is one of the pieces of machinery used to produce granite tiles. One of its many crucial components is the towing motor. The production process requires a high-performance and easily accessible kiln unit because it lasts for 24 hours. As a result, there will be less downtime since the extra towing motor can take the place of the damaged one. The Terje Aven availability model calculates the number of towing motor reserves. The availability of kiln equipment has not yet achieved its full potential because the company currently has six backup towing motors.
Feasibility Analysis of Capacity Building at CV X Bintaro Branch Fatahillah Ramdhan, R. Adji; Susanto, Sani; Rian Praktikto, Franciscus
Jurnal Improsci Vol 2 No 3 (2024): Vol 2 No 3 December 2024
Publisher : Ann Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62885/improsci.v2i3.557

Abstract

CV X is a company engaged in beauty services such as nail and eyelash treatment. CV X has a problem: a lack of salon capacity due to the high customer demand. This caused lost sales of IDR 188,597,000 in 2022 because customers were rejected when they wanted to book due to full capacity. Therefore, the owner of CV X plans to increase the capacity of the Bintaro branch to minimize the occurrence of lost sales, which can cause significant losses. To improve this capacity, an analysis is needed to precede it so that CV X can determine whether this capacity-building plan is feasible from various aspects to minimize failures. The feasibility analysis of this capacity building will be carried out on five main determining aspects: market and marketing, operational, legal, financial, and environmental. The market and marketing aspects discuss the company's competitive strength, the potential for market growth, and marketing strategies. The operational aspect discusses the current capacity, plans to increase capacity and layout, and the number of human resources needed. The legal aspect discusses the best form of business entity and the necessary documents and requirements. The financial aspect discusses the feasibility of investment with projected demand estimates, HPP calculations, income statements, and cash flow statements. It assesses feasibility based on Net Present Value (NPV), Internal Rate of Return (IRR), and Payback Period indicators. After the research activities were conducted, the results were obtained that the market aspect was feasible because it had a significant market share and knew the best way to maximize the potential market share. The operational aspect is feasible because it knows the layout plan and the details of the number of workers needed. The legal aspect is feasible because it meets the legal requirements and knows the best form of business entity. The financial aspect is feasible because the projected value generated in the economic calculation exceeds all the indicators used: the NPV value of Rp3,139,234,978, IRR of 219%, and Payback Period of 0.66. The environmental aspect is said to be feasible because it can handle all the waste appropriately produced so that it does not pollute the surrounding environment.
Integration of Ergo-Manufacturing and Simulation to Minimise Waiting Time for Cracker and Kemplang Production Process Flow (Case Study of PT. Belimo Food Industry) Setiawan, Heri; Susanto, Sani; Rinamurti, Micheline; Alfian, Achmad
Jurnal Improsci Vol 2 No 5 (2025): Vol 2 No 5 April 2025
Publisher : Ann Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62885/jurnalimprosci.v2i5.660

Abstract

Belimo Food Industry factory is engaged in the production of crackers and kemplang with the Belimo brand. Observations made at the packing workstation, there is still a buildup or bottleneck in the press machine that is not optimal and performance is not efficient because it violates many ergonomic principles in the manufacturing industry (Ergo-Manufacturing). This research explores the integration of Ergo-Manufacturing concepts with simulation. The research aims to improve performance and reduce process lead time. The research method used is quantitative-descriptive with primary data. Data processing uses the integration method of the Ergo-Manufacturing concept with Arena software-based simulation so as to provide solutions that can optimise the performance of process waiting time, improve efficiency, work comfort, and production capacity at the packing workstation. The results of the study after applying Ergo-Manufacturing with work environment settings can minimise the waiting time of the initial condition process with a process time of 58.273 minutes. Under the conditions of improvement scenario 1, the process waiting time of 26,830 minutes can reduce the process time by 60%, under the conditions of improvement scenario 2, the process waiting time of 14,562 minutes can reduce the process waiting time by 80% and under the conditions of improvement scenario 3, the process waiting time of 12,483 minutes can reduce the process time by 85%. The results of the BEP decision analysis for scenario 1 were selected by adding 1 press machine to 2 press machines which can increase production capacity by 128 products and reduce overtime costs incurred by the company for 1.5 hours by IDR 40,500 and BEP investment in press machines takes 3 years.
Co-Authors AA Sudharmawan, AA Akhmad Farikhin Alfian, Achmad Ali, Ahad Andy Yusuf Martua Anggorowati, Yuni Archer, Raphael Ayu Pramiarsih Basarah, Iwan Mumin Catharina, Clara Daniel Godjali, Vincentius Daniel Siswanto Daniel Siswanto Daniel Siswanto Dedi Suryadi Dedy Suryadi Dominikus Budiarto, Dominikus Edah Jubaedah Elkana Timotius F. Rian Pratikto F. Rohman Fatahillah Ramdhan, R. Adji Fathurohman, Muhamad Felicia Natalie Wangsa Ferdinand, Ryan Gerardus Daniel Julianto Hari Adianto Hari Adianto Hari Adianto Hilmi Istiqomah Nursyam Homan, Hery Syaerul I Wayan Sukania Indranila, M.V. Irsan Herlandi Putra Iwan Mumin Basarah Jayawarsa, A.A. Ketut Jovan Kurnia, Christopher Jubaedah, Edah Juliyanto Juliyanto Kevin Handika, Natanael Lianching Christiane Nasali Lina Gozali Marihot Nainggolan Matthew Ramandri, Andreas Micheline Rinamurti, Micheline Monica Nathania Utama Muhammad Syahrudin Nashar, Gifari Bayu Nurwijayanti Nuzulan, Faza Firdaus Orpha Jane Paulus Sukapto Pratama, Yohanes Dicka Rian Praktikto, Franciscus Rian Praktikto, Fransiscus S Tjandra, Sugih Shafira Putri, Adeela Suryahartanto, Geraldy Syah Tjaja, Arief Irfan Thedy Yogasara Ulfa Nur Ulumiah Wildan YMK Aritonang YMK Aritonang Yuni Anggorowati Yusuf W, Yogi