Proceedings of the 8th International Conference on Applied Engineering (ICAE 2025)

The Impact of Monthly Subcontractor Performance Evaluation on the Construction Process of a 26-Meter Tugboat

Authors
Muhammad Arif Sidiq1, *, Aulia Fajrin1, Naufal Abdurrahman Prasetyo1, Tiwi Gustria Ningsih1, Ifti Luthviana Dewi1
1Batam State Polytechnic, Batam, 29461, Indonesia
*Corresponding author.
Corresponding Author
Muhammad Arif Sidiq
Available Online 29 December 2025.
DOI
10.2991/978-94-6463-982-7_26How to use a DOI?
Keywords
Main Contractor; Subcontractor; Performance Assessment; 26 Meter Tugboat
Abstract

In the shipbuilding industry, subcontractors play a crucial role in the construction process because most types of work cannot be completed solely by the main contractor. Various specialized tasks require subcontractors with expertise in specific components while the new shipbuilding process is underway. Consequently, main contractors establish their own standards for evaluating subcontractor performance during project execution. Previous studies have generally focused only on subcontractor selection processes in shipyards. This paper fills that gap by examining the performance of subcontractors over a defined period while collaborating with the main contractor in the construction of a 26-meter tugboat. The performance assessment employed a combination of qualitative and quantitative methods. Evaluation forms were distributed to division heads within the main contractor’s organization, and the collected data were analyzed based on predetermined parameters. The objective of this study is to determine subcontractor performance during their engagement in the tugboat construction project, identify technical factors that influence monthly performance, and analyze whether subcontractor performance affects the overall construction process. The results of the eight-month performance assessment show scores ranging from 3.32 to 4.19, indicating performance levels from sufficient to very good, and meeting the standards set by the main contractor. Furthermore, the validity test results were declared valid with a product moment r-table threshold of 0.666, yielding values between 0.704 and 0.946. The reliability test also met the minimum Cronbach’s alpha coefficient requirement of 0.60 with a score of 0.940. This study provides a reference for shipyards to periodically assess subcontractor performance to ensure smooth and uninterrupted construction of 26-meter tugboats.

Copyright
© 2025 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

Download article (PDF)

Volume Title
Proceedings of the 8th International Conference on Applied Engineering (ICAE 2025)
Series
Advances in Engineering Research
Publication Date
29 December 2025
ISBN
978-94-6463-982-7
ISSN
2352-5401
DOI
10.2991/978-94-6463-982-7_26How to use a DOI?
Copyright
© 2025 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

Cite this article

TY  - CONF
AU  - Muhammad Arif Sidiq
AU  - Aulia Fajrin
AU  - Naufal Abdurrahman Prasetyo
AU  - Tiwi Gustria Ningsih
AU  - Ifti Luthviana Dewi
PY  - 2025
DA  - 2025/12/29
TI  - The Impact of Monthly Subcontractor Performance Evaluation on the Construction Process of a 26-Meter Tugboat
BT  - Proceedings of the  8th International Conference on Applied Engineering (ICAE 2025)
PB  - Atlantis Press
SP  - 430
EP  - 442
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-982-7_26
DO  - 10.2991/978-94-6463-982-7_26
ID  - Sidiq2025
ER  -