%0 Thesis %B ASCE J. Comp. in Civ. Engrg., Volume 20, Issue 3, pp. 177-186 %D 2006 %T Human-Assisted Obstacle Avoidance System Using 3D Workspace Modeling for Construction Equipment Operation %A Kim, C. %A Haas, C. %A Liapi, K. %A Caldas, C. %B ASCE J. Comp. in Civ. Engrg., Volume 20, Issue 3, pp. 177-186 %G eng