MANAGEMENT OF SCHEDULING OPTIMIZATION OF SUPPORTING FACILITIES AND INFRASTRUCTURE DEVELOPMENT PROJECT IN THE AREA OF FOLDER AIR HITAM SAMARINDA

Supporting Facilities and Infrastructures Development Project of Folder Air Hitam Samarinda is realized by PT. Trinanda Karya Utama. This project has a possibility of retardation, so it results to the retardation of other activities. One of the ways to anticipate it by conducting acceleration which is by Time Cost Trade Off (TCTO) method through alternative of adding working hours in the trial ranging from 1 hour to 4 hours at maximum limit. It aims to analyze the time and cost needed by the implementation of TCTO in completing the development of Supporting Facilities and Infrastructure of Folder Air Hitam Samarinda. In realizing the design of the acceleration, it is started from the network creation of Critical Path Method (CPM) to know the existence of critical path, then TCTO method is applied to find the cost slope value of each of these critical activities. In order to realize the acceleration, then compression is done further on critical work items starting from the value of the lowest cost slope. The results of this study show that for overtime work of several activities ranging from overtime 1 hour to 4 hours, time and cost obtained over 2 hours overtime on mini pile work, poor plat sand backfill, sills + windows J3, ceiling paint, PVC toilet wall with 86 days, the cost needed is 4.532.921.979,82 and the additional cost is IDR 371.312.000,00