Abstract
As the CALS/EC has been improved in civil engineering construction, the various drawings, such as CAD data, and it is important to utilize CAD data effectively when considering rationalization of construction.
Based on these backgrounds, this paper reports the new construction management system, which used 3-dimensiona product data for earth-moving machinery at the earthwork site, and verifies the availability in using this system. Although the big effect was acquired in machine construction and construction management by introduction this system, it became clear the problem about the cost of system introduction and system maintenance etc.
