Construction scheduling using 3-D CAD and walk-thru

Three-dimensional (3-D) CAD and walk-thru are promising technologies in design and construction. While gaining widespread acceptance in design, the use of 3-D and walk-thru during the construction phases of projects is evolving slowly. One significant barrier to acceptance includes lack of documented cost/benefit analysis. Experimental results reported herein provide quantitative evidence of the advantages of 3-D CAD and walk-thru for planning construction projects. The results provide strong evidence of the practical benefits and appropriate areas of application for 3-D CAD and walk-thru technology.