OPTIMUM COST ANALYSIS OF ACCELERATION PROJECT WITH TIME COST TRADE OFF ANALYSIS METHOD (Case Study: Construction Project of Industrial Waste Treatment Facilities)

• Main Author: Harmoko, Sudi
• Format: Theses
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/41046
• Institution: Institut Teknologi Bandung

Today construction projects in Indonesia are growing rapidly. This was showed by the many development projects carried out by the government and the private sector both on a large scale and in a small scale. With the development project that continues to run, it will open up employment opportunities and also improve the living standards of the community. CV. ABC is a contractor company in the field of building construction, the majority of projects that are already done are for factory buildings construction. CV. ABC got a contract for the construction of industrial waste treatment facilities from one of the electronic component companies in Bandung regency. This is in line with the program of the central government and the province of West Java to realize Citarum Harum, and requires all factories around the Citarum river to have standard waste treatment facilities so as not to pollute the environment and the citarum river. The project owner requested that the project completion be accelerated from the initial plan. The acceleration of project implementation should be done with good planning to get optimum costs while maintaining the quality standard. In this research the acceleration is performed by adding of working hours from one hour, 2 hours, 3 hours, and 4 hours, and the addition of 25% of the initial workforce. The analysis begins by finding the critical path using Microsoft Project then crashing is performed to get the cost slope of the activity on the critical path, then analysis is performed with the Time Cost Trade Off Analysis method and finally represented by a graphic relationship of cost and time duration project for each alternative is created. The research aims to accelerate implementation of project at optimum costs. From the 5 alternatives above, the optimum cost is obtained in the 3rd alternative, namely by adding 3 working hours, there is a reduction in the total cost of 1.02%(Rp 57,062,665.08). In addition, alternative 3 also produces the most optimum duration project, which is successful in accelerating project completion up to 14 days so that it can be completed in 82 days from the normal duration of 98 days