ABSTRACT
As pari of a recent project to identify and prioritize human performance issues (Lee, Sheridan, Poage, Martin, Cabrall & Jobe, 2009) related to NASA's Next Generation Air Transportation System AIM-Airspace Project (NextGen; SLDAST, 2007), a walkthrough of a future Separation Assurance (SA) concept was conducted. The walkthrough revealed that the Human Factors (HF) issues initially identified as problematic from a theoretical standpoint were not necessarily those that experienced Air Traffic Controllers (ATC), i.e., expert users, saw as stumbling points in the concept. These findings had particular implications for the example concept but more broadly emphasized that a range of human factors issues should be considered from the earliest points of future airspace concept designs.
