WORLD JOURNAL OF INNOVATION AND TECHNOLOGY

Application of 3D, 4D and 5D Building Information Modeling (BIM) in the Design of the Building Structure of the Archives Depot Building of the East Kutai Regency Secretariat

2025-11-12T14:47:43+00:00

This section consists of single paragraph and about 250 words maximum. For research articles, abstracts should give a pertinent overview of the work. We strongly encourage authors to use the following style of structured abstracts, but without headings: The development of digital technology in the construction industry has driven the adoption of Building Information Modeling (BIM) as an integrated approach in designing and managing building projects. However, the use of BIM, especially 3D, 4D, and 5D models, is still not optimal in non-metropolitan areas such as East Kutai Regency due to low technical understanding among construction service providers and users. This research aims to develop a BIM implementation model that is in accordance with local needs, especially in the design of government building structures. Using a qualitative approach based on case studies and meta-synthesis techniques on secondary data from the East Kutai Regency Secretariat Archives Depot Building project, this study integrates various BIM software such as Autodesk Revit, Proisac BIM 4D, and Sofistik Reinforcement to build a model that is able to represent geometric information, implementation schedules, and cost estimates simultaneously. The results show that the integration of 3D, 4D, and 5D BIM results in a more accurate, efficient, and can be used as a reference for replication in similar projects. In addition to answering local problems, this research makes a practical contribution to the preparation of a BIM implementation framework based on software interoperability, as well as expanding academic discourse on the application of BIM in the regional construction environment. The implications include the potential to increase the efficiency of public projects through the digitization of planning, while encouraging the strengthening of technical capacity and information technology-based procurement policies at the regional level.

Feasibility Analysis of Seaweed Processing Industry Infrastructure Development in Muara Badak, Kutai Kartanegara

2025-11-12T14:47:45+00:00

This study analyzes the feasibility of developing a seaweed processing industry in Muara Badak, Kutai Kartanegara, by assessing technical, financial, market, social, and environmental aspects. The research adopts a mixed methods approach, combining quantitative financial analysis with qualitative assessments of community dynamics and institutional readiness. Data collection was conducted over three months through field surveys, interviews, and secondary sources. The technical evaluation confirms the adequacy of local infrastructure and raw material availability to support a facility capable of processing 20 tons of wet seaweed per day. Financially, the project shows strong viability, with a Net Present Value (NPV) of IDR 15.05 billion, an Internal Rate of Return (IRR) of 35%, a payback period of 4.16 years, and a break-even point of 19 tons/day. Market analysis highlights significant domestic and international demand growth for value-added seaweed products. Social impacts include increased farmer income, job creation, and greater economic participation of women and farmer groups. Environmentally, the project presents manageable risks, provided that integrated waste management and coastal conservation practices are implemented. The study concludes that the seaweed processing industry in Muara Badak is not only feasible but also strategically aligns with Indonesia’s

Analysis of Budget Allocation Optimization Based on the Bill of Quantity (BOQ) in a Swamp Reclamation Project

2025-11-12T14:47:46+00:00

This study aims to analyze the structure of budget allocation based on the Bill of Quantity (BOQ) document for the Swamp Reclamation Network Improvement Project in DR. Petung, Penajam Paser Utara Regency. A quantitative descriptive approach was used, focusing on calculating the cost proportions and work weights to identify dominant components in the project. The analysis revealed that out of a total budget of IDR 3,333,333,333.33, three major work groups box culvert bridge construction (IDR 1,120,928,026.65 or 33.63%), screw-type water gate (IDR 871,211,789.55 or 26.14%), and primary canal works (IDR 816,184,000.00 or 24.49%) absorbed more than 84% of the total project cost. These proportions align with the work weights stated in the BOQ, indicating consistency between the technical workload and budget allocation. These findings reinforce that hydraulic control structures are critical components in swamp reclamation projects and should be the primary focus in budget planning and cost control. The study recommends applying data-based BOQ evaluations as tools to improve budget efficiency and risk management for future infrastructure projects.

Disaster Mitigation Management Strategies in Slum Settlement Infrastructure Planning: A Case Study of the Sepaso Area, East Kutai

2025-11-12T14:47:47+00:00

Slum settlements are areas highly vulnerable to disasters due to the high density of buildings, poor drainage systems, and limited open space and evacuation routes. Disaster mitigation strategies need to be comprehensively integrated into the planning of such areas, particularly through adaptive zoning and spatial planning approaches. This research aims to evaluate the implementation of disaster mitigation strategies in the Detail Engineering Design (DED) for slum upgrading in Sepaso Village, East Kutai. The study employs a descriptive qualitative approach, using the DED technical documents and spatial interpretation of the area as the main data sources. The results show that the area is divided into four functional zones: residential, public facilities, buffer/green open space, and access roads. This zoning was formulated based not only on utility function, but also on potential disaster risks such as localized flooding. The buffer zone is designed as a water absorption area and flow breaker, while evacuation routes and public facilities are placed in areas of higher elevation. The zoning distribution achieves a balance between residential function (60.5% of the area) and mitigative zones (39.5%). This planning demonstrates that mitigation strategies can be effectively integrated into settlement infrastructure through spatial approaches, enabling the slum area to develop into a safe, healthy, and sustainable environment.

An Analysis of Cost Efficiency and Budget Distribution in the Cipari Makmur Irrigation Network Improvement Project

2025-11-12T14:47:49+00:00

This section consists of single paragraph and about 250 words maximum. For research articles, abstracts should give a pertinent overview of the work. We strongly encourage authors to use the following style of structured abstracts, but without headings: This study aims to analyze cost efficiency and budget distribution in the Cipari Makmur irrigation network improvement project located in Muara Kaman District, Kutai Kartanegara Regency. A quantitative descriptive method was used based on the project's Bill of Quantities (BoQ), including calculations of budget percentage, unit cost efficiency, cost variation coefficient (KV), and cumulative cost efficiency index (CCEI). The results show that from a total budget of IDR 5,467,027,900, reinforced concrete work accounted for IDR 4,439,726,600 (81.21%), pile work IDR 753,900,000 (13.79%), and earthwork IDR 90,108,700 (1.65%). Unit cost analysis revealed consistent and reasonable values such as IDR 2,380,000/m³ for concrete K-250, IDR 150,000/m¹ for timber piling, and IDR 60,000/m³ for soil excavation. A high KV value indicates an uneven cost distribution, while the CCEI shows that over 95% of the budget is absorbed by the top three work components. These findings emphasize the need to prioritize oversight on dominant cost components. Evaluating the BoQ proves to be a strategic tool in identifying budget control priorities and improving technical efficiency in irrigation project implementation.

Optimization of Project Management Implementation to Minimize Delays in the Usaha Tani Street Project in Tenggarong District

2025-11-12T14:47:51+00:00

The rural road development project in Tenggarong District plays a vital role in supporting connectivity and advancing the agricultural sector. However, this project has faced significant delays due to various factors, including technical and administrative obstacles. The delay in project completion not only disrupts the construction schedule but also negatively affects the local community's economy. Therefore, this study aims to analyze the causes of delays and formulate optimized management strategies to minimize the impact of these delays. This research uses a quantitative and qualitative descriptive approach. Primary data were collected through field observations, semi-structured interviews with stakeholders (project managers, field supervisors, and contractors), and documentation of weekly project progress reports over a 12-week period. Secondary data were obtained from literature studies related to road project management and construction delays. Quantitative data were analyzed by comparing planned and actual progress using tables and graphs, while qualitative data were thematically analyzed to identify the main causes of delays and the corrective actions taken. It was found that the actual progress lagged behind the planned progress, particularly between weeks 3 and 8, with the highest gap reaching -6.29%. However, optimization efforts through increased labor, schedule adjustments, and accelerated material procurement successfully closed the gap, so that by week 12 both planned and actual progress reached 100%. These findings demonstrate the effectiveness of adaptive control strategies and intensive coordination among stakeholders.

An Alternative Approach to Comparing In-Situ Concrete Compressive Strength Using the Hammer Test Method

2025-11-12T14:47:53+00:00

Concrete is a composite material consisting of fine aggregate, coarse aggregate, cement, and water, mixed in precise proportions. In construction projects—ranging from small-scale developments to large-scale infrastructure—ensuring the quality of concrete is critical to achieving the intended structural performance. One commonly used method for evaluating concrete strength without damaging the structure is the hammer test. This non-destructive testing (NDT) method offers the advantage of generating a large amount of data in a relatively short time. The hammer test works by applying an impact load to the surface of the concrete, with the rebound value directly indicating the surface hardness, which correlates with compressive strength. Results can be obtained immediately in the field, making it highly practical for on-site quality assessments. Additionally, this method can serve as a comparative tool against laboratory tests conducted on destructive samples, providing a broader understanding of concrete quality across various sections of a structure.