Risk Management Affecting the Cost and Time of the Structure Work Development Project of High-Level Building (A Case Study of the Alton Apartment Tembalang City Semarang Project)

Risk prevention using risk management is a process of identifying, measuring, ascertaining risk and developing strategies to manage risk. The purpose of this study was to determine the factors that influence the cost and time on the structure work of The Alton Apartment Development Project. The process is carried out through the identification stage, the analysis phase, and the risk response stage. The identification stage is done through a literature study, then the next step is to conduct a survey with the first stage questionnaire to validate the risks that occur. The analysis phase to determine the dominant risk is done by estimating the frequency and impact on costs and time, then classified with the Probability Impact Grid The risk response stage is to provide a risk response or a risk prevention solution. From the results of the study, there are six factors that affect costs and time, among others, the placement of moving material, the occurrence of loading and unloading queues, delays in the delivery of material, the existing utility systems that are not detected, and the low productivity of equipment. Having known these risk factors, precautions are taken to minimize the risk factors by providing a solution.