Introduction to 4D Research
Traditional construction planning tools, such as bar charts and network diagrams, do not represent and communicate the spatial and temporal, or four-dimensional, aspects of construction schedules effectively. As a consequence, they do not allow project managers to create schedule alternatives rapidly to find the best way to build a particular design. Extending the traditional planning tools, visual 4D models combine 3D CAD models with construction activities to display the progression of construction over time.
My research team has tested the usefulness of visual 4D models in planning the construction of a hospital, a university building, a commercial building, a Frank Gehry project, and a theme park. These cases have shown that more project stakeholders can understand a construction schedule more quickly and completely with a 4D visualization than with the traditional construction management tools. However, 4D models are very time-consuming to generate manually and cannot currently support analysis programs. The difficulty and cost of creating and using such models is currently blocking their widespread adoption. My research team has been formalizing the construction knowledge necessary to build 4D models and has developed a methodology that guides project planners in generating 4D models from 3D product models. We have demonstrated that this formalized knowledge enables project managers to create and update realistic schedules rapidly and to integrate the temporal and spatial aspects of a schedule as intelligent 4D models. These intelligent 4D models support computer-based analysis of schedules with respect to cost, interference, safety, etc., and improve communication of design and schedule information.
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What You Will Need to View Examples
If you want to view the many examples documented on these pages the following plug-ins are required:
Quicktime or any movie viewer
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