By 2025, U.S. air traffic is predicted to increase 3-fold and may strain the current air traffic management system, which may not be able to accommodate this growth. In response to this challenge, a consortium of industry, academia and government agencies have proposed a revolutionary new concept for U.S. aviation operations, termed the Next Generation Air Transportation System or "NextGen". Many key capabilities are being identified to enable NextGen, including the concept of "net-centric" operations whereby each aircraft and air services provider shares information to allow real-time adaptability to ever-changing factors such as weather, traffic, flight trajectories, and security. Data-link is likely to be the primary source of communication in NextGen. Because NextGen represents a radically different approach to air traffic management and requires a dramatic shift in the tasks, roles, and responsibilities for the flight deck, there are numerous research issues and challenges that must be overcome to ensure a safe, sustainable air transportation system. Flight deck display and crew-vehicle interaction concepts are being developed that proactively investigate and overcome potential technology and safety barriers that might otherwise constrain the full realization of NextGen.Keywords: Data-link, surface maps, situation awareness, aviation safety, equivalent visual operations, runway incursions, taxi conflicts, low-altitude alerting, flight-deck display, Next Generation Air Transportation System 1. BACKGROUND
Next Generation Transportation SystemNextGen represents a revolutionary approach to air traffic management that requires a shift in the tasks, roles, and responsibilities for all operators, including the flight deck. There are numerous research issues and challenges that must be overcome to ensure a safe, sustainable air transportation system. NextGen envisions the movement of large numbers of people and goods in a safe, efficient, and reliable manner. NextGen will remove many of the constraints in the current air transportation system, support a wider range of operations, and deliver an overall system capacity up to 3 times that of current operating levels. New capabilities are envisioned for NextGen, including four-dimensional trajectory (4DT) operations, equivalent visual operations (EVO), super density arrival/departure operations, and network-centric operations. As part of this work, NASA is focused on issues associated with the NextGen Terminal Maneuvering Area (TMA) to include: 1) the impact of emerging NextGen operational concepts, such as equivalent visual operations (EVO) and four-dimensional trajectory (4DT) operations; 2) the effect of changing communication modalities within a net-centric environment; and 3) the influences from increased pilot responsibility for self-separation and navigation performance compliance.
Voice CommunicationsVerbal communication is the most efficient and adaptable form of communication and has inherent advantages including speed of transmission, human tone to express ...