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Innovative Research in Civil and Environmental Engineering (IRCEE)
Published by CV. Sinar Howuhowu
ISSN : -     EISSN : 30890985     DOI : https://doi.org/10.70134/ircee
Core Subject : Engineering,
Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Engineering
Innovative Research in Civil and Environmental Engineering (IRCEE) is an academic journal committed to publishing high-caliber articles that contribute to advancing research in the fields of civil engineering and environmental sciences. IRCEE provides a platform for researchers, engineers, and professionals to share cutting-edge findings and novel approaches within these disciplines. The journal accepts a diverse range of manuscripts that address key topics such as material science innovations, structural engineering advancements, geotechnical solutions, construction management strategies, water resources engineering, and transportation system development. Additionally, IRCEE focuses on implementation techniques, workplace health and safety protocols, and comprehensive approaches to the planning, operation, evaluation, and maintenance of infrastructure projects like buildings, bridges, and environmental systems.
Arjuna Subject : Teknik (semua kategori) - Teknik Sipil dan Struktur
Articles 23 Documents
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The Effect Of Autocad Utilization On The Architectural Drawing Skills Of Civil Engineering Students Ikhtiar Aroniati Daeli; Carsa Alim Lase
Innovative Research in Civil and Environmental Engineering Vol. 3 No. 1 (2026): IRCEE - April
Publisher : CV. SINAR HOWUHOWU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70134/ircee.v3i1.1875

Abstract

The integration of Computer-Aided Design (CAD) software into engineering education has become increasingly important in developing students' technical competencies and professional readiness. This study aimed to examine the effect of AutoCAD utilization on the architectural drawing skills of civil engineering students. A quantitative research approach with an explanatory design was employed. The study involved civil engineering students who had completed engineering drawing and AutoCAD-related courses. Data were collected using structured questionnaires and architectural drawing performance assessments. The collected data were analyzed using descriptive statistics and simple linear regression. The findings revealed that the level of AutoCAD utilization among students was categorized as high, with an overall mean score of 4.23, while architectural drawing skills also achieved a high category with an overall mean score of 4.18. Regression analysis demonstrated that AutoCAD utilization had a positive and statistically significant effect on architectural drawing skills (β = 0.742, p < 0.001). The coefficient of determination (R² = 0.572) indicated that 57.2% of the variation in students' drawing skills could be explained by AutoCAD utilization. These findings suggest that frequent and effective use of AutoCAD enhances drawing accuracy, visualization ability, drafting efficiency, and compliance with engineering drawing standards. The study concludes that integrating AutoCAD into civil engineering education significantly improves students' architectural drawing competencies and better prepares graduates for the technological demands of the modern construction industry.
Evaluation Of Soil Bearing Capacity Based On Cone Penetration Test (CPT) Results In Gunungsitoli City, Indonesia Bimawijaya Laia; Jefri Rahmat Daeli; Andrew Christover Harefa; Piter Telaumbanua; Kevin Berkat Mendrofa
Innovative Research in Civil and Environmental Engineering Vol. 3 No. 1 (2026): IRCEE - April
Publisher : CV. SINAR HOWUHOWU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70134/ircee.v3i1.1876

Abstract

Soil bearing capacity is a critical parameter in geotechnical engineering that determines the safety, stability, and performance of foundation systems. Accurate evaluation of bearing capacity is essential for selecting appropriate foundation types and preventing excessive settlement or structural failure. This study aims to evaluate the soil bearing capacity in Gunungsitoli City, Indonesia, based on Cone Penetration Test (CPT) results. A quantitative descriptive research approach was employed using in-situ CPT data collected from six representative investigation points. The analysis involved the interpretation of cone tip resistance (qc), sleeve friction (fs), friction ratio (Rf), soil stratification, and estimation of allowable bearing capacity through established empirical correlations. The results indicate that cone resistance generally increases with depth, reflecting a transition from soft clay and silty sand near the ground surface to dense sandy deposits at greater depths. The estimated allowable bearing capacity ranges from 320 kPa to 500 kPa, depending on local subsurface conditions. These values suggest that isolated footings are suitable for light to medium-rise structures, whereas raft or pile foundations are recommended for heavier infrastructure. Spatial variations in bearing capacity demonstrate the influence of local geological conditions, emphasizing the necessity of conducting site-specific geotechnical investigations before construction. Overall, the study confirms that the Cone Penetration Test provides a reliable, efficient, and economical method for evaluating soil bearing capacity and supports safer and more cost-effective foundation design for future infrastructure development in Gunungsitoli City.
The Effect Of Traffic Volume On Traffic Congestion Levels Along National Roads In Nias Regency, Indonesia Muhammad Haris Zalukhu; Jun Fajar Krisman Giawa; Ignasia Hastuti Halawa
Innovative Research in Civil and Environmental Engineering Vol. 3 No. 1 (2026): IRCEE - April
Publisher : CV. SINAR HOWUHOWU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70134/ircee.v3i1.1877

Abstract

Traffic congestion has become a major transportation challenge affecting mobility, economic activities, and regional accessibility, particularly along national roads that serve as primary transportation corridors. This study aims to analyze the effect of traffic volume on traffic congestion levels along national roads in Nias Regency, Indonesia. A quantitative descriptive approach combined with correlational analysis was employed to examine the relationship between traffic volume and roadway operational performance. Primary data were collected through manual traffic surveys conducted during morning, midday, and evening observation periods over seven consecutive days. Vehicle counts were converted into Passenger Car Units (PCU) based on the Indonesian Highway Capacity Guidelines (PKJI 2023). Traffic congestion levels were evaluated using road capacity, Volume-to-Capacity (V/C) ratio, average travel speed, and Level of Service (LOS). The influence of traffic volume on congestion was analyzed using simple linear regression. The results indicated an average traffic volume of 1,535.5 PCU/hour, an estimated road capacity of 1,850 PCU/hour, and a V/C ratio of 0.83, corresponding to Level of Service (LOS) D, which represents unstable traffic flow approaching roadway capacity. Regression analysis produced a correlation coefficient (R = 0.914) and a coefficient of determination (R² = 0.835), indicating that approximately 83.5% of the variation in traffic congestion levels could be explained by traffic volume. The statistical test confirmed that traffic volume has a significant positive effect on traffic congestion along national roads in Nias Regency (p < 0.001). The study concludes that increasing traffic demand substantially reduces roadway operational performance and recommends integrated congestion management strategies, including traffic control optimization, roadside activity regulation, parking management, and long-term infrastructure improvements to support sustainable regional transportation.

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