Hybrid system dynamics and discrete event simulation for understanding and managing large-scale construction

为了理解和管理复杂的、动态的大型建设项目，本研究将开发一个混合系统动力学和离散事件仿真系统。考虑到施工中持续存在的成本和进度超支，迫切需要提供一种有效的工具来帮助更好地了解大规模施工。本质上，PI试图确定大规模施工中不同过程之间的复杂交互作用，特别是通过施工作业及其周围环境之间的反馈(即交互作用)，因为这些反馈导致了大规模施工中存在的严重动态和复杂性。为了有效地对这些反馈进行建模和分析，充分利用系统动力学和离散事件仿真的潜力，采用了一种混合的系统动力学和离散事件仿真方法。换句话说，PI保持了离散事件仿真对离散操作的良好分析能力，将系统动力学集成在一起，以利用其在表示操作和上下文之间的反馈方面的优势。

The proposed research will develop a hybrid System Dynamics and Discrete Event Simulation system in order to understand and manage complex and dynamic large-scale construction projects. Considering the persistent cost and schedule overruns present in construction, there is a tremendous need to provide an effective tool to facilitate a better understanding of large-scale construction. In essence, the PI seeks to identify complex interactions among various processes in large-scale construction, particularly through feedbacks (i.e., interactions) between construction operations and their surrounding contexts given that these feedbacks result in the severe dynamics and complexities present in large-scale construction. A hybrid System Dynamics and Discrete Event Simulation approach is pursued in order to effectively model and analyze these feedbacks, utilizing System Dynamics and Discrete Event Simulation to their fullest potential. In other words, maintaining Discrete Event Simulation's excellent capability to analyze discrete operations, the PI integrates System Dynamics in order to utilize its strength in representing the feedbacks between operation and context.