摘要: The Next Generation Air Transportation System (NextGen) represents the transformation of the National Airspace System, including our national system of airports, using 21st century technologies to ensure future safety, capacity an... 展开 The Next Generation Air Transportation System (NextGen) represents the transformation of the National Airspace System, including our national system of airports, using 21st century technologies to ensure future safety, capacity and environmental needs are met. NextGen will be realized through investments in research and development, technologies, operational changes, and the coordinated efforts of private industry and federal NextGen partner agencies, including the Federal Aviation Administration (FAA); the Departments of Transportation (DOT), Defense (DOD), Homeland Security (DHS), and Commerce (DOC); the National Aeronautics and Space Administration (NASA); and the White House Office of Science and Technology Policy (OSTP). NextGen is a collaboration among these Federal agencies and aviation stakeholders to meet the increasing demand for efficient and affordable air transportation services. Among its research, development, and coordination activities, the Joint Planning and Development Office (JPDO) is charged with analyzing the costs, benefits and risks of NextGen. In response to federal budgeting requirements and the Office of Management and Budget (OMB) reporting requirements for the Fiscal Year 2011 (FY2011) budget, this year the JPDO has developed a Portfolio Analysis package that serves as the basis for a full NextGen Business Case. The NextGen Business Case is expected for the FY2012 budget. 收起