IMPLEMENTATION OF VR-BASED COMS The modeling for VR-based COMS is conducted based on the 2D models. Simultaneously, a number of transformation interfaces are provided for various formatted files to avoid redundancy of modeling tasks [15]. Due that a large number of scene models and objects exist during the simulation process, an SGI workstation, together with CreatorTM software, is applied to generate the scene models of container terminals. This is realized based on the surveying information that contains dimensions and locations of objects. For this purpose, these models are further simplified