[CAD Note] Additional BIM advantages - Clash Interference Detection Management. 
Clash and interference detection features enable us to perform clash tests against specified geometry to more easily find and resolve conflicts. Anticipate and avoid potential problems before construction, reducing expensive delays and rework. Links clash test to 4D simulations and object animations to analyze issues in space and time. This software also provides the ability to manage and track clashes and interferences through to resolution. Reports of clash tests, including comments and screenshots, can be exported to communicate issues to the project team.

Software:
http://usa.autodesk.com/navisworks/