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All Journal Indonesian Journal of Innovation Studies
N. Riwibowo
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Computer Science & IT Education Engineering Law, Crime, Criminology & Criminal Justice

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Bisar 3.0 for Analytical Road Pavement Design: Bisar 3.0 untuk Desain Jalan Beraspal Analitis N. Riwibowo; Prambudi, Wahyu Tri; Cahyaningrum, Fibia Sentauri; Ariyanti, Menik; Rizki, M. Alvan
Indonesian Journal of Innovation Studies Vol. 26 No. 4 (2025): October
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/ijins.v26i4.1751

Abstract

Background: Safe and comfortable road pavement is a fundamental requirement, yet most designs rely on empirical methods that limit the ability to analyze detailed structural behavior. Specific Background: Analytical methods allow comprehensive evaluation of pavement layer strength, enabling faster and more precise calculations. Knowledge Gap: Limited studies have applied Bisar 3.0 guided by the Nottingham Design Method to calculate strain and service life in pavements using CTB (Concrete Treated Base) and Class B aggregate layers. Aim: This study applies the Bisar 3.0 program to determine road service life under fatigue cracking and permanent deformation criteria. Results: Calculations show analytical methods predict a longer service life (~±20 years) than empirical methods. Higher foundation stiffness and low average daily traffic reduce service life, and fatigue cracking criteria indicate a longer lifespan than permanent deformation. Novelty: Integration of Bisar 3.0 with Nottingham Design Method for precise service life estimation provides a detailed analytical approach rarely applied in road pavement studies. Implications: Findings support engineers in optimizing pavement design, selecting appropriate layer materials, and predicting long-term road performance more accurately. Highlights: Analytical design predicts longer road service life than empirical methods Fatigue cracking lifespan exceeds permanent deformation lifespan Bisar 3.0 enables rapid and precise calculation of pavement layer strains Keywords: Road Pavement, Analytical Method, Bisar 3.0, Nottingham Design Method, Service Life
Time Delay Risk Analysis in SMPN 2 Mantup Classroom Construction: Analisis Risiko Penundaan Waktu dalam Konstruksi Ruang Kelas SMPN 2 Mantup Prambudi, Wahyu Tri; N. Riwibowo; Cahyaningrum, Fibia Sentauri; Ariyanti, Menik; Rizki, M. Alvan
Indonesian Journal of Innovation Studies Vol. 26 No. 4 (2025): October
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/ijins.v26i4.1752

Abstract

General Background: Timely completion of construction projects is critical for operational efficiency and cost management. Specific Background: The New Classroom Building Project at SMPN 2 Mantup-Lamongan experienced delays caused by human resources, material availability, and weather conditions, highlighting challenges in project scheduling and risk management. Knowledge Gap: Limited studies provide quantitative assessments of combined environmental, material, and workforce factors on construction delays in local school infrastructure projects. Aims: This study aims to analyze the magnitude of time delays, identify dominant risk factors, and propose mitigation strategies to manage project risks effectively. Results: Data from 45 respondents using questionnaires and analyzed via SPSS revealed that rainfall intensity (21.6%), workforce skill (16.8%), and worker discipline (14.4%) were the leading contributors to delays, with an overall project delay of 6 days compared to the planned schedule. Novelty: The research integrates Critical Path Method calculations with survey-based risk assessment to provide a precise, practical strategy for local construction projects. Implications: Findings offer actionable guidance for contractors and project managers to optimize resource allocation, reduce delays, and improve project reliability. Highlights: Rainfall intensity identified as the highest delay factor. Workforce skill and discipline significantly affect project duration. CPM combined with survey analysis provides actionable mitigation strategies. Keywords: Construction Delays, Risk Analysis, Critical Path, Project Management, SMPN 2 Mantup
Co-Authors Ariyanti, Menik Cahyaningrum, Fibia Sentauri Prambudi, Wahyu Tri Rizki, M. Alvan