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Bulletin of Engineering Science, Technology and Industry
ISSN : -     EISSN : 30255821     DOI : https://doi.org/10.59733/besti
Bulletin of Engineering Science, Technology and Industry | ISSN: 3025-5821 is a peer-reviewed journal that publishes popular articles in the fields of Engineering, Technology and Industrial Science. This journal is published 4 times a year, namely in March, June, September and December. We invite scientists, practitioners, researchers, lecturers and students from various countries and institutions to contribute to publishing their work and research results in the fields of Engineering, Technology and Industry.
Articles 193 Documents
REDESIGN OF THE SUPERSTRUCTURE DIMENSIONS FOR THE SEI BINGAI I STEEL TRUSS BRIDGE, BINJAI CITY Ismi Suharti Ningrum; Rhini Wulan Dary; Ahmad Sumantri; Oktavia Ully Artha Silalahi
Bulletin of Engineering Science, Technology and Industry Vol. 4 No. 3 (2026): September
Publisher : PT. Radja Intercontinental Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.23005282

Abstract

The Sei Bingai I Bridge in Binjai City is a steel truss bridge that was inaugurated in 1997 and requires a re-design study due to the increase in vehicle activity in the surrounding area. This study aims to determine the superstructure load, steel profile dimensions, and the diameter and number of connection bolts. Primary data were obtained through direct measurements, while secondary data came from literature studies. Loading refers to SNI 1725:2016, steel design to SNI 1729:2020, and concrete to SNI 2847:2019. Internal force analysis was carried out using SAP2000. The design maintains the warren truss type with a span of 55 m and a design width of 7 m. The design results in a 200 mm thick floor slab with D16–200 main reinforcement and D12–200 split reinforcement. The longitudinal girders used WF 700.300.15.28, the transverse girders WF 900.300.18.34, the upper members WF 400.400.45.70, and the lower and diagonal members WF 400.400.30.50. The wind ties used L 250.250.20. The main frame connections used 44 upper member bolts and 28 diagonal bolts with a diameter of 24 mm. The inter-girder connections used eight bolts with a diameter of 22 mm, while the wind ties used four bolts with a diameter of 16 mm. The bolts used A325 quality. The study was limited to the upper structure without considering earthquake loads and construction costs.
ANALYSIS OF THE PERFORMANCE EFFECTIVENESS OF THE KARYA WISATA INTERNATIONAL SYSTEM USING THE PTV VISSIM SIMULATION APPROACH AND THE 2023 PKJI STANDARDS Nadia Aliya Balqis; Amrizal; Pagit Juni Sartika Br Tarigan; Fenny Novita Meysabed Sianturi; Dinnie Ananda Rizky
Bulletin of Engineering Science, Technology and Industry Vol. 4 No. 3 (2026): September
Publisher : PT. Radja Intercontinental Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.23005469

Abstract

Karya Wisata intersection in Medan Johor District experiences declining traffic performance due to high vehicle volumes and side friction from commercial activities. This study evaluates existing intersection performance using the 2023 Indonesian Road Capacity Manual (PKJI 2023) and PTV VISSIM and identifies the most effective improvement scenario. Traffic volume, road geometry, and side friction were obtained through field surveys. The existing condition had a degree of saturation of 0.81, an average simulated delay of 31.80 seconds/vehicle, a maximum queue length of 35.75 meters, and Level of Service (LOS) D. Five improvement scenarios were evaluated: a separating median, U-turn relocation, traffic signal control (APILL), combined APILL and median treatment, and a flyover. APILL was selected as the most practical tactical intervention, achieving LOS B with an average delay of 19.71 seconds/vehicle and a maximum queue length of 73.13 meters. The flyover achieved LOS A but was positioned as a secondary long-term alternative. The study recommends APILL supported by side-friction control to optimize intersection performance and maintain traffic-flow stability.
ANALYSIS OF PILE FOUNDATION BEARING CAPACITY BASED ON SPT AND CPT DATA IN THE SEI SILAU BARAT – PRAPAT JANJI ROAD BRIDGE PROJECT Muhammad Iqbal; Nova Juliana
Bulletin of Engineering Science, Technology and Industry Vol. 4 No. 3 (2026): September
Publisher : PT. Radja Intercontinental Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.23005419

Abstract

This study aims to analyze the bearing capacity and settlement of pile foundations based on Standard Penetration Test (SPT) and Cone Penetration Test (CPT) data on the Sei Silau Barat–Prapat Janji Road Bridge Project, and compare the results with the analysis using Allpile Software. The method used is quantitative analysis based on soil investigation data. The calculation of bearing capacity based on SPT data uses the Meyerhof, Tomlinson, and Luciano Decourt methods, while CPT data uses the Meyerhof and Vesic methods. The analysis also includes the bearing capacity of pile groups, foundation settlement, and verification of the superstructure load using SAP2000. The results show that the Meyerhof method based on SPT data produces the largest ultimate bearing capacity of 305.67 tons, while based on CPT data the Vesic method produces 150.72 tons. The efficiency value of the pile group is 0.642, with all group bearing capacities greater than the structural load. The settlement of single piles ranged from 24.70–27.06 mm, while the group settlement was 78.10–85.57 mm. The Allpile analysis also demonstrated a bearing capacity that met the load requirements. Based on these results, the pile foundation for the project was declared safe and capable of supporting the bridge structure's loads according to design requirements.
GEOMETRIC REDESIGN, FLEXIBLE PAVEMENT DESIGN, AND COST ESTIMATE (RAB) FOR THE GUNUNG TUA–AEK GODANG ROAD SECTION, STA 6+800–STA 21+900 Adi Syahputra Pasaribu; Panji Marshando; Efri Debby Ekinola Ritonga; Rizky Franchitika
Bulletin of Engineering Science, Technology and Industry Vol. 4 No. 3 (2026): September
Publisher : PT. Radja Intercontinental Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.23005319

Abstract

The geometric redesign, flexible pavement design, and Cost Budget Plan (RAB) for the Gunung Tua–Aek Godang Road Section from STA 6+800 to STA 21+900 in North Padang Lawas Regency were carried out to improve road safety, driving comfort, and traffic flow. This study aimed to design the road geometry based on the 2021 Road Geometric Design Guidelines (PDGJ), design the flexible pavement using the 2024 Bina Marga Pavement Design Manual (MDPJ), and estimate the construction cost based on the 2024 Unit Price Analysis (AHSP). The data used in this study included Average Daily Traffic (ADT), topographic data, and subgrade soil data (CBR). The geometric design results identified a total of 18 horizontal curves that comply with the requirements of the 2021 PDGJ. Based on the 2024 MDPJ, the proposed flexible pavement structure consists of a 4 cm Asphalt Concrete Wearing Course (AC-WC), 6 cm Asphalt Concrete Binder Course (AC-BC), 8 cm Asphalt Concrete Base (AC-Base), 20 cm Class A Aggregate Base Course, 15 cm Class B Aggregate Subbase Course, and 20 cm Selected Fill (LFA). The designed pavement structure is capable of accommodating the projected traffic loads throughout the design service life in accordance with the 2024 MDPJ. The estimated total construction cost was IDR 98,140,652,856.
ENVIRONMENTAL MANAGEMENT OF PHYSICAL AND CHEMICAL HAZARDS IN THE OIL AND GAS INDUSTRY: A LITERATURE STUDY Imron; Marsidi; Samat
Bulletin of Engineering Science, Technology and Industry Vol. 4 No. 4 (2026): December - ON PROGRESS
Publisher : PT. Radja Intercontinental Publishing

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Abstract

Oil and gas operations involve interconnected physical and chemical hazards affecting workers, the environment, and nearby communities. Effective risk management combines source control, equipment integrity, environmental and occupational monitoring, worker protection, emergency preparedness, contractor oversight, verified corrective action, and organizational learning. Chemical risks occur through air, water, soil, vegetation, and produced-water pathways, while physical risks include fire, explosion, pressure, confined spaces, heat, noise, vibration, and infrastructure failure. Monitoring alone is insufficient without management commitment, training, reporting, and controls for both routine exposures and major accidents. Evidence is stronger for emissions and process safety than for occupational noise, vibration, heat, long-term biomonitoring, multimedia exposures, interventions, and community health. Future systems should integrate industrial hygiene, environmental science, process safety, digital monitoring, and environmental-equity analysis.
ANALYSIS AND MAPPING OF PAVEMENT DISTRESS ON THE SIMPANG TANAH ABANG–GALANG–SERDANG BEDAGAI BOUNDARY ROAD, DELI SERDANG Disa Aulia Putri; Tetra Oktaviani; Wirdatun Nafiah Putri; Morin Morissa Lumbantoruan
Bulletin of Engineering Science, Technology and Industry Vol. 4 No. 3 (2026): September
Publisher : PT. Radja Intercontinental Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.23005349

Abstract

The 11.45-km Simpang Tanah Abang–Galang–Serdang Bedagai Boundary Road, a provincial collector supporting the Trans-Sumatra Highway network, has experienced pavement deterioration. This study identified distress types, assessed road conditions using the Pavement Condition Index (Indeks Kondisi Perkerasan, IKP) and Surface Distress Index (SDI), determined treatments, and mapped conditions and treatment priorities. The survey covered 458 IKP segments at 50-m intervals and 230 SDI segments at 100-m intervals. A total of 843 distress locations were identified across 10 types, dominated by potholes (49.0%) and alligator cracking (20.6%). In the right lane, Poor was the predominant IKP category among distressed segments, comprising 43 segments (18.8%), whereas Fair predominated under SDI (40.9%). In the left lane, the IKP Good category comprised 151 segments, including 120 without distress, while Good predominated under SDI (68.7%). IKP was more sensitive to variations in distress type and severity. ArcGIS mapping showed a concentration of severe distress in the right lane. Reconstruction and structural improvement were prioritized in the right lane, whereas the left lane primarily required routine and periodic maintenance.
HORIZONTAL ALIGNMENT ANALYSIS BASED ON COORDINATE DATA ON THE STATE JAYA-SIMPANG KALIAWI INDAH ROAD SECTION, WAY KANAN REGENCY Efan Efendi; Diana Nur Afni
Bulletin of Engineering Science, Technology and Industry Vol. 4 No. 4 (2026): December - ON PROGRESS
Publisher : PT. Radja Intercontinental Publishing

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Abstract

Horizontal alignment is an important part of road geometry because it is related to changes in direction and bends on the road trajectory. On the Jalan Negara Jaya-Simpang Kaliawi Indah section, Way Kanan Regency, analysis was carried out based on STA data and the coordinates of available control points. Data processing included calculation of distance between points, azimuth, azimuth change as deflection angle, and radius estimation based on three consecutive coordinate points. The data analyzed consisted of 14 control points from STA 0+000 to STA 9+732. The results of the analysis showed 12 changes in direction, with 9 locations having a deflection angle of more than 5% and 3 locations showing small changes. The largest change in direction was found at STA 1+500 at 62.31° to the left, followed by STA 3+750 at 58.86° to the left. The smallest indicative radius was obtained at STA 1+500 of 596.43 m and STA 3+750 of 669.72 m. This value is an indicative radius and not a bend radius of the existing design. The evaluation refers to the Road Geometric Design Guidelines Number 13/P/BM/2021, but the suitability of the minimum radius and other bend parameters cannot be determined as more detailed PC, PI, PT, plan speed, and centerline data have not been carried out. The results of the analysis can be used as a basis for determining locations that require further geometric surveys.
LIFE CYCLE ASSESSMENT OF MBBR-BASED WASTEWATER TREATMENT PLANT (CASE STUDY: WWTP OF A SOAP AND COSMETIC INDUSTRY) Fadyah Rahmanina Susanti Patingari; Yosef Barita Sar Manik
Bulletin of Engineering Science, Technology and Industry Vol. 4 No. 4 (2026): December - ON PROGRESS
Publisher : PT. Radja Intercontinental Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.23029227

Abstract

Wastewater treatment plants (WWTPs) in the soap and cosmetics industry are often assessed primarily through effluent compliance,overlooking environmental burdens from electricity, chemical use, and sludge management. This study applies Life CycleAssessment (LCA), following ISO 14040/14044, to a full-scale Moving Bed Biofilm Reactor (MBBR)-based WWTP treating high-strength wastewater at a soap and cosmetics manufacturing facility in West Java, Indonesia. The gate-to-gate system was modeled using 36 months of operational data and ecoinvent v3.10 background data, with impacts assessed for 1,000 m³ of treated wastewater using ReCiPe 2016 Midpoint (H) in openLCA. The impact assessment showed a global warming potential of 216,928.1 kg CO₂ eq, fossil resource scarcity of 60,277.8 kg oil eq, terrestrial ecotoxicity of 511,267.9 kg 1,4-DCB, freshwater ecotoxicity of 4,730.3 kg 1,4-DCB, and human non-carcinogenic toxicity of 203,723.9 kg 1,4-DCB, The MBBR aeration blower, EQ tank pump, centrifuge decanter motor, and DAF transfer pump accounted for over 85% of electricity consumption. Terrestrial Ecotoxicity andHuman Non-Carcinogenic Toxicity were primarily associated with chemical production and sludge-borne contaminants, while Global Warming and Fossil Resource Scarcity were mainly linked to electricity consumption and fossil-based power generation. Overall, chemical use and electricity consumption were key contributors to the WWTP’s environmental footprint, highlighting chemical dosage optimization and energy efficiency as potential improvement strategies.
ASSESSMENT OF ROAD PAVEMENT DAMAGE USING THE PAVEMENT CONDITION INDEX (PCI) METHOD ON THE SOEKARNO-HATTA ROAD SECTION, LAMPUNG Allamah Adjie Pamungkas; Fery Hendi Jaya; M. Enriko Tosulfa; A. Hendra Yusuf
Bulletin of Engineering Science, Technology and Industry Vol. 4 No. 4 (2026): December - ON PROGRESS
Publisher : PT. Radja Intercontinental Publishing

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Abstract

Consequently, a systematic assessment of pavement condition is required to determine the extent of damage and identify necessary maintenance or repair needs. This study aims to identify the types and severity levels of damage and assess the pavement condition on the Bandar Lampung By pass road section (Km 6+000 to Km 9+000) using the Pavement Condition Index (PCI) method. Data collected included the type, area, severity, and location of damage for each road segment. The data were subsequently analyzed using the PCI method, involving calculations for density, Deduct Value (DV), Total Deduct Value (TDV), Corrected Deduct Value (CDV), and the final PCI value. The results indicate three primary types of damage on the surveyed road section: potholes, patches, and alligator cracking. The total identified damage area was 2,091.50 m², with the following distribution: potholes (12.10%), patches (58.95%), and alligator cracking (28.95%). Based on the segment-by-segment assessment, the lowest conditions among the surveyed segments were found at STA 0+700–0+800 (PCI 60, "Good" category), STA 1+000–1+100 (PCI 56, "Good" category), and STA 2+800–2+900 (PCI 82, "Very Good" category). Meanwhile, the lowest PCI values ​​were recorded at STA 0+200–0+300 (20) and STA 1+900–2+000 (22) both falling into the "Very Poor" category and STA 2+500–2+600 (28), which falls into the "Poor" category. Overall, the average PCI value for the road section was 37.27, classifying the pavement condition as "Poor." Based on these results, remedial action is required for the damaged pavement sections, particularly in locations with low PCI values.
POTENTIAL, CHALLENGES, AND STRATEGIES FOR MARINE WAVE ENERGY DEVELOPMENT IN INDONESIA TO SUPPORT THE 2060 NET-ZERO EMISSION TARGET: A SYSTEMATIC REVIEW Teguh Budi Raharjo; Faisal
Bulletin of Engineering Science, Technology and Industry Vol. 4 No. 4 (2026): December - ON PROGRESS
Publisher : PT. Radja Intercontinental Publishing

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Abstract

Indonesia possesses vast renewable energy potential, yet the utilization of ocean wave energy remains minimal compared to solar or hydropower. This study aims to analyze the potential, technological challenges, and formulate strategies for developing ocean wave energy in Indonesia to support the 2060 Net Zero Emission (NZE) target. The method employed is a Systematic Literature Review (SLR) combined with qualitative policy analysis of the PLN RUPTL documents and NZE roadmap. The results indicate that the southern coasts of Java, Sumatra, and Nusa Tenggara have an average wave power density of 15–25 kW/m, which is technically feasible for exploitation. However, the commercialization of Wave Energy Converter (WEC) technology in Indonesia is hindered by the high Levelized Cost of Energy (LCOE) ranging from US$0.30–0.80/kWh, challenging tropical marine environmental conditions (biofouling, corrosion, extreme waves), and the absence of specific regulatory incentives. Comparative studies with the Philippines, Brazil, and India reveal that Indonesia lags behind in three key aspects: regulatory incentives, technology testing facilities, and dedicated research funding allocation. This article recommends acceleration strategies through hybrid system integration (wave-wind-solar), the development of pilot projects in remote areas (3T) for diesel substitution, the formulation of a 2024–2060 marine technology roadmap, and the revision of RUPTL to include at least 500 MW of wave energy in the 2025–2035 portfolio.