Designing project schedule using crashing method to compress the fiber to the home project schedule

Abstract

ABC Company is an agent of network construction, operation, and maintenance. ABC Company is currently implementing the STTF (Shit to the Front) project, which is the project to add FTTH (Fiber to the Home) networks in areas that can have high customer demand. One of the STTF project construction sites is the Indra Prahasta II housing location. However, the project is currently experiencing work delays due to the Covid-19 disaster in Indonesia. Delays in project execution can result in potential prospects choosing another company that provides similar services. The project schedule can be accelerated using the crashing method and TCTO (Time Cost Trade-Off) analysis to solve this problem. This research's acceleration will be carried out with alternatives for adding 3 hours, 2 hours, 1 hour, and an alternative to increasing workers' number. This project has an average duration of 55 working days with a total cost of Rp 604,124,460. The results obtained from data processing, on the alternative of adding 1 hour of overtime work, the total duration becomes 54 working days with total project cost is Rp 605,734,138. In addition to 2 hours of overtime work, the project's total duration can be reduced to 54 days with a total project cost Rp 606,803,619. And for the addition of 3 hours overtime, the total duration can be shortened to 54 days with a total cost of Rp 606,803,619. As for increasing the number of workers, project work duration can be shortened to 54 working days with a total project cost Rp 604,556,748

Evaluation of Time, Cost, and Factors Causing Delay of Grounding and Lightning Protection Installation Project

“…The crashing method is used to optimise working time by shortening the duration of work at the lowest additional cost (Anugerah et al, 2021). Activities in a project can be accelerated in various ways, namely increasing labour, increasing work time, changing work methods, or using construction tools that help accelerate the project.…”

Schedule Acceleration Planning in Construction Project (Case Study: Japek II Selatan Tollroad)

“…A critical path is a series of activities that are on the longest route of a network diagram and have minimal slack and float values. Slack and float are the amount of time delay activity (allowance time) without delaying or interfering with the completion of the entire project [8]. Critical Path Method (CPM) is a project management model that makes cost the object of analysis.…”

“…Several previous studies are used as references in this study consisting of: 1. Designing project schedule using crashing method to compress the fiber to the home project schedule [8] One of the STTF project building locales is the Indra Prahasta II lodging area. The project delays because of the Covid-19 calamity in Indonesia.…”