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.

使用风险管理进行风险预防是识别、衡量、确定风险和制定风险管理策略的过程。本研究的目的是确定影响奥尔顿公寓开发项目结构工作的成本和时间的因素。该过程通过识别阶段、分析阶段和风险应对阶段进行。识别阶段是通过文献研究完成的，然后下一步是使用第一阶段问卷进行调查，以验证发生的风险。确定主要风险的分析阶段是通过估计频率和对成本和时间的影响来完成的，然后使用概率影响网格进行分类。风险响应阶段是提供风险响应或风险预防解决方案。从研究结果来看，影响成本和时间的因素有六个，其中包括移动材料的放置、装卸队列的发生、材料交付的延迟、未检测到的现有公用系统以及设备的低生产率。了解这些风险因素后，采取预防措施，通过提供解决方案将风险因素降至最低。