Project is construction of Honam-speed Railway 3-1, Korea. Upper girder of bridge all PSC BOX type(30/35/40M PSC BOX, 40M FSM PSC BOX) in DMU(Digital Mock-up) and working construction shop-drawings. More work scopes are as follows:

Comparing BIM with 2D based design. /Review of constructability. /Detecting

the errors of 2D based design. /Clash of steel and girder devices. /Review the adequacy of quantity.