Analysis of Duration and Cost of Turi – Pucangro Road Improvement Project Using Monte Carlo Simulation Continued with Crashing Method

Abstract

Project planning is a crucial initial stage in the series of project management activities. Even though construction project planning is done as well and as meticulously as possible, its implementation may not necessarily proceed as planned. For example, the execution of the road improvement project from Turi to Pucangro, which measures 262 meters long and 3 meters wide, also experienced delays. In the implementation of this research, the data obtained through the project was processed and subjected to Monte Carlo Simulation and Crashing Method to determine the duration of acceleration, completion probability, and the accelerated costs. The Monte Carlo Simulation was conducted using RiskyProject 7 Pro software. The results of the Monte Carlo simulation on the project duration show that the duration for the critical activity, which is the Layer of Aggregate Foundation Class S, is 9 days with a completion probability ranging from 50% to 80%. For the remaining work of Cement Concrete with Single Mesh Reinforcement (FS' 45), the duration is 2 days, also with a completion probability ranging from 50% to 80%. The acceleration program in this study was carried out by adding working hours or overtime to the critical path activities. With this strategy, the initial execution time of 45 days can be reduced to 41 days. The cost incurred for the acceleration is Rp. 11,496,452.43 or 2.38% of the initial cost of Rp. 483.551.700,00. Thus, the total cost for completing the Road Improvement Project from Turi to Pucangro after the acceleration is Rp. 495.048.152,43.