Proceedings of the International Conference on Tropical Studies and Its Application (ICTROPS 2024)

<Previous Article In Volume
Next Article In Volume>

Time Cost Trade-Off Analysis for Time and Cost Optimization on The Water Treatment Plant (WTP) Construction Project

Authors
Mardewi Jamal1, *, Dharwati P. Sari1, Dean Mangasi A. Hutajulu1
1Mulawarman University, Samarinda, East Kalimantan, 75119, Indonesia
*Corresponding author. Email: wie.djamal@gmail.com
Corresponding Author
Mardewi Jamal
Available Online 7 June 2025.
DOI
10.2991/978-94-6463-732-8_21How to use a DOI?
Keywords
Construction; Crashing; TCTO; WTP
Abstract

A project is a business or activity that is complex, non-routine, limited by time, budget, resources and performance specifications designed to meet consumer needs. The Water Treatment Plant (WTP) construction project in Pulau Pinang Village, which has a capacity of 50L/SPAM, affects access under public roads. Therefore, this research was carried out to speed up project time using the Time Cost Trade-Off Analysis (TCTO) method. TCTO is an analysis method used to speed up project completion time by compressing the schedule to get a more profitable project in terms of time (duration) and cost. TCTO analysis uses the Crashing method, assisted by Microsoft Project 2016 software. The research results show that the standard time to complete a project is 180 days, and after accelerating with a Crash time, the minimum project completion time becomes 147 days; while accelerating with a Crash time, the maximum project completion becomes 140 days. Alternative improvements based on critical hotspots in this research use maximum crashing. This result is evidenced by the efficiency of reducing the total project cost by 0.36%, namely IDR 26,709,375.38 and the efficiency of reducing the total project time by 22.2%, namely 40 days.

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)

<Previous Article In Volume
Next Article In Volume>
Volume Title
Proceedings of the International Conference on Tropical Studies and Its Application (ICTROPS 2024)
Series
Advances in Engineering Research
Publication Date
7 June 2025
ISBN
978-94-6463-732-8
ISSN
2352-5401
DOI
10.2991/978-94-6463-732-8_21How 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

risenwbib
TY  - CONF
AU  - Mardewi Jamal
AU  - Dharwati P. Sari
AU  - Dean Mangasi A. Hutajulu
PY  - 2025
DA  - 2025/06/07
TI  - Time Cost Trade-Off Analysis for Time and Cost Optimization on The Water Treatment Plant (WTP) Construction Project
BT  - Proceedings of the International Conference on Tropical Studies and Its Application (ICTROPS 2024)
PB  - Atlantis Press
SP  - 228
EP  - 235
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-732-8_21
DO  - 10.2991/978-94-6463-732-8_21
ID  - Jamal2025
ER  -