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On Samarinda-Anggana Road Improvement Project, in estimating the time and cost of a project, an acceleration process is needed. Acceleration is usually done to optimize the duration of existing activities and to minimize risk but it still gets optimal results. One of the ways to achieve time and cost efficiency is by using the method of "Fast Track" with modification of CPM model scheduling on the activities of the critical path. The objectives of this research are: 1) Determining the optimal result with the Fast Track process on the project, 2) Determining the cost plan for the time acceleration, 3) Calculating the amount of time difference of optimum acceleration in the completion of road improvement project and cost caused by acceleration. This research uses fast track method. From the calculation of the project duration using fast track method, the following results are obtained: 1) road improvement project of Samarinda Anggana calculated with the CPM model with normal duration in the contract time is 210 days, so the project needs to be accelerated by Fast Track method that produces acceleration duration to 171 days, 2) the optimum cost incurred in the normal duration or the project budget plan is Rp.16.677.156.783,43 and costs gained after Fast Track method is Rp. 16.522.297.470,44, 3) the difference in duration between normal time and after fast track is 39 days. While, the difference in cost between normal time and after using Fast Track is Rp.154.859.312,99, it can be concluded that it saves 0.93% from the normal cost.

TIME AND COST EFFICIENCY ANALYSIS WITH FAST TRACK METHOD ON SAMARINDA-ANGGANA ROAD IMPROVEMENT PROJECT