Abstract: This video highlights the human-in-the-loop (HITL) simulations conducted by the ATD-1 project and features visual elements developed for Traffic Management Advisor – Terminal Metering, Controller Managed Spacing, and Flight Deck Interval Management. The video content is fairly technical and intended for audiences that have some knowledge of air traffic management issues. This includes researchers and management from NASA, FAA, industry partners, and others interested in terminal metering, con…