Study Of Lavatory Installation Methods On Ship Landing Platforms
Article Sidebar
Main Article Content
Abstract
Landing Platform Dock (LPD) ships as amphibious warships with complex accommodation systems, including lavatory installations, require effective and efficient installation methods. This study was motivated by the need to compare two lavatory installation methods, namely the conventional method and the modular method, in an effort to increase productivity and reduce the amount of rework in the construction of LPD ships. The research method used is the direct observation method at the national shipyard, with data collection through installation time records, number of man hours, material costs, and number of rework events. Data were analyzed using a quantitative descriptive approach by comparing these variables in each type of lavatory. In this study, 3 types of lavatory with different dimensions and shapes were used. The modular method which requires 10-14 days to complete has proven to be significantly more efficient in terms of implementation time compared to the conventional method with results of 19-25 days according to the type of lavatory. Likewise in the number of man-hours needed, which reached 384-480 JO for the conventional method and 264-456 JO for the modular method in the three types of work. The costs incurred for this production require IDR 67,880,890 - IDR 81,377,090 for the modular method and IDR 71,682,490 - IDR 87,713,090 for the conventional method. Thus, the modular method has proven to be more effective in increasing productivity and reducing the cost of installing a better lavatory.
Downloads
Article Details
This work is licensed under a Creative Commons Attribution 4.0 International License.
Allow anyone to modify, improve, and make derivative works, even for commercial purposes, as long as they credit to you for the original work.
Accepted 2025-07-22
Published 2025-07-25
References
C. Griyantia, I. Mulyatno and K. Kiryanto, "Design Study of Reschedule of New Ship Construction Using Full Outfitting Block System (FOBS) With Project CPM on 200 GT LCT Ship," Jurnal Teknik Perkapalan, vol. 3, p. 4, 2015.
S. Reksohadiprojo, Project Management Second Edition, 2 ed., Yogyakarta: BPFE, 1987.
I. Dipohusodo, Project and Construction Management, 2nd ed., Yogyakarta: Kanisius Yogyakarta, 1996.
DS Syahputra, "Efforts to Adjust Accommodation Facilities to Support the Seaworthiness of the MV. Selili Baru Ship," Semarang Maritime Polytechnic, Semarang, 2020.
"Big Indonesian Dictionary," [Online]. Available: https://kbbi.kemdikbud.go.id/.
A. Arianto, "Exploration of Bar Chart, CPM, PDM, PERT, LINE OF BALANCE AND TIME CHAINAGE DIAGRAM Methods in Construction Project Scheduling," Master of Civil Engineering, Diponegoro University, Semarang, 2010.
V. Bertram, "Modular Payload Ships : 1975-2005," Proceedings, 2005.
D. Cleand, Project Management Strategic Design and Implementation, Singapore: McGraw-Hill Inc, 1995.
YA Dewanto, "Increasing Productivity in the Development of 1500 DWT Tanker Ships Using a Module System," vol. III, no. 2, 2013.
Elviyanti, IA Zulikasio and H. Lalan, "Schedule Analysis Using Precedence Diagram Method (PDM) of Building Project by PT.X," Journal of Scientech Research and Development, vol. 5, no. 1, pp. 449-458, 2023.
Fadllan, "Time and Cost Optimization Analysis Using the Time Cost Trade Off Method on the Navigation Class I Ship Construction Project at the Batam Shipyard, Riau Islands," Doctoral dissertation, Institut Technology Sepuluh Nopember, Surabaya, 2017.
J. Gowan, R. Mathieu and M. Hey, Earned Value Management in A Data Warehouse Project, 2006.
S. Jatmiko and D. Chrismianto, "TECHNICAL STUDY OF USING FULL OUTFITTING BLOCK SYSTEM (FOBS) METHOD IN PRODUCTION OF BOX SHAPE BLOCK CARRIER (BSBC) SHIP CONSTRUCTION M 229/230 WITH CAPACITY OF 50,000 DWT AT PT. PAL INDONESIA," February 2008.
B. Ma'ruf, Y. Okumoto and S. Widjaja, "Environment-Based Strategic Management Model for Indonesia's Medium-Sized Shipyards," Journal of Ship Production, vol. 22, no. 4, pp. 195-202, 2006.
HNA, "Project Management: Techniques in Planning and Controlling Construction Projects," John Wiley & Sons, 1984.
HR, IT Applications in Construction Management, 1st ed. ed., Sleman: deepublish, 2014.
I. Soeharto, Project Management (From Conceptual to Operational) Volume 1 Concept of Feasibility Study and Network, Jl. H. Baping Raya No. 100 Ciracas, Jakarta: Erlangga Publisher, 1999.
F. Taufiqurrohman, "Scheduling Analysis of Block SS2A Hospital Auxiliary Ship at PT PAL Indonesia Using the Precedence Diagramming Method (PDM) and Project Evaluation and Review," DIPLOMA IV STUDY PROGRAM IN SHIP MANUFACTURING ENGINEERING, STATE POLYTECHNIC OF BANYUWANGI, Banyuwangi, 2023.
N. Virliantarto, B. Ma'ruf and K. Suastika, "Measurement of Technology Readiness for the Construction of 100 TEUs Container Ship with Modular System at PT. PAL Indonesia," Jurnal Wave, vol. 11, no. 1, pp. 31-38, 2017.