Integrating realtime project progress input into a construction simulation model

Computer simulation has been widely applied in modeling construction operation to gain insight into project performance. However, simulation models are rarely used after the project planning and design stage. One main constraint is the time and effort needed for collecting pertinent and correct information and processing it for input into the model. As projects progress and project circumstances change, simulation model inputs need to be updated to reflect these changes and maintain model validity. This paper demonstrates the integration of real time progress data into a simulation model, using a tunnel construction project as an example. A progress monitoring system was developed to capture progress data, and provide real time project progress input into a simulation model. The simulation model is able to revise the inputs in light of the actual progress and provide long-term support through project execution.