Human Safety in Avaition Write a module case study regarding the NextGen Air Transportation System: The NextGen Air Transportation System is a complex, revolutionary redevelopment of the broad U.S. air traffic control system that includes many challenging and interrelated components and concepts including a fundamental transfer from a RADAR, ground-based system to a GPS, satellite-based system. Its multi-year implementation touches virtually every aspect of aviation operations. As such it presents many potential human factors challenges that can potentially directly affect aviation safety. Select one major of those potential challenges and analyze and evaluate it in detail.