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EXPORT DATE: 21 June 2026

@CONFERENCE{Hantoro2026,
author={Hantoro, Kevin Christianto and Susanto, Tan Vincent Genova and Hermawan, - and Hasiholan, Budi and Aminullah, - },
editor={Hamzeh, Farook and Poshdar, Mani and Garcia-Lopez,, Nelly P. },
title={Evaluation of delays using BIM 4D in projects implementing Last Planner System (case study: project x)}, 
journal={Proceedings of the 34th Annual Conference of the International Group for Lean Construction (IGLC 34)}, 
booktitle={Proceedings of the 34th Annual Conference of the International Group for Lean Construction (IGLC 34)}, 
year={2026},
pages={272-282},
url={http://www.iglc.net/papers/details/2568},
doi={10.24928/2026/0286},
affiliation={Student of Civil Engineering Study Program, Faculty of Engineering, Soegijapranata Catholic University,  Semarang, Indonesia, 21b10007@student.unika.ac.id , https://orcid.org/0009-0000-5034-2226  ;  Student of Civil Engineering Study Program, Faculty of Engineering, Soegijapranata Catholic University,  Semarang, Indonesia, 21b10012@student.unika.ac.id , https://orcid.org/0009-0003-0565-1179 ; Lecturer of Civil Engineering Study Program, Faculty of Engineering, Soegijapranata Catholic University,  Semarang, Indonesia, hermawan.mrk@unika.ac.id, orcid.org/0000-0002-7405-4736   ; Lecturer of Civil Engineering Study Program, Faculty of Civil and Environmental Engineering, Bandung Institute  of Technology, Bandung, Indonesia, dtt.budihasiholan@unika.ac.id, orcid.org/0009-0004-0565-254X  aminullaht1975@gmail.com, orcid.org/0009-0008-1031-1570    ; Lean Construction Manager/Strategic Project management - Transformation & IT Division - PT. Wijaya Karya,  Tbk (Persero) - Jakarta - Indonesia,  },
abstract={The Indonesian construction sector is a vital economic driver but suffers from frequent setbacks, with approximately 38% of projects experiencing delays. Traditional scheduling methods, such as CPM and PERT, often lack the flexibility and collaborative potential required for dynamic modern projects. Consequently, this study evaluates the Last Planner System (LPS) integrated with 4D Building Information Modeling (BIM) to anticipate delays and implement the Lean Construction mechanism. Focusing on "Project X" in Semarang, the research utilized quantitative data, including S-Curves and weekly work plans alongside 4D simulations created with Microsoft Project and Autodesk Navisworks. Performance was measured using Percent Plan Complete (PPC) to track the consistency between planned and realized work. The results were significant: integrating LPS with 4D BIM achieved a 100% PPC and saved 15 working days compared to using LPS alone. This demonstrates that combining collaborative planning with advanced visualization effectively enhances productivity. Future research is suggested to expand this interoperability to include cost-benefit analysis (BIM 5D). },
author_keywords={Last Planner® System, BIM, lean construction, delay, percent plan complete. },
address={Singapore, Singapore },
issn={2789-0015 },
publisher={ },
language={English},
document_type={Conference Paper},
source={IGLC},
}