Estimated Operating Time for Large Construction Projects by PERT/CPM Methods

Abstract

Project management teams are always challenged by the timeframe on construction projects. General construction projects with excessive operating time with inefficient project management have a negative impact on the project owner from the need to use those buildings for profit, resulting in the loss of income in the part that must be gained from the excessive time spent on the construction. The objective of this research was to apply the Project Evaluation and Review Technique ( PERT ) and Critical Path Method ( CPM ) to study construction planning methods and compare to find the appropriate implementation timeframe from 5 sample projects with different types of construction works in different nature of work. From the results of the study by simulating the operation plan based on the actual operation plan, it was found that all 5 projects had a probability that the work would be completed, ie 50%, 70% and 90%. The average suitable operating time from the contract period was 73.99% , 82.19% and 89.52% respectively.