Mark Ellis describes himself as a "facility design zealot," and his passion shows when he talks about any of the more than 200 projects he’s contributed to at HDR | MDG. As the technical team leader for industrial workflow and equipment on the LA Metro Division 14 Rail Operations and Maintenance Facility, Mark and his team had the daily mantra, "Okay, does this really work?" In this bonus episode, Mark discusses more of the technical details of the Division 14 facility, featured on Episode 7 of Speaking of Design.