CAD, BIM, Software The BorderTransportationSystem will need to have hundreds to thousands of drawings, and each drawing will have to tie in with cost sheets, suppliers, and dozens of other pertinent information.  For this reason there will be a need for dozens of drafters and architects, as well as computer systems and appropriate drafting and modeling software. Index of ... 5D BIM An Introduction to Building Information Modeling The guide to Building Information Modeling The Top 6 Free and Open Source BIM Software Tools