Go below the surface of NextGen to see the analysis behind the benefits. The 2013 Operational Performance Assessment (PDF) provides statistical analysis of the performance of NextGen enhancements in specific locations in the National Airspace System (NAS). The aim of the analysis is to describe the operating environment where NextGen capabilities have been implemented, and measure the impacts of those deployments in a systematic and standardized way.

Our assessments focus on a select set of NextGen improvements that have been operational for a sufficient amount of time to enable meaningful analysis and for which the required empirical data is available. The report provides an overview of the improvements and the corresponding operational NAS impacts to determine if we achieved the desired outcome.

For example, we found that

  • WAAS LPV precision approaches improved access to general aviation airports, and there was a noticeable shift in demand across the NAS to airports that have better precision approach capabilities.
  • Across the NAS, aircraft utilizing Required Navigation Performance Authorization Required (RNP AR) approaches experienced improvements in performance, especially during periods when instrument flight procedures had to be used.
  • New Optimized Profile Descent Procedures (OPDs) in the Washington, D.C.-area increase fuel savings and provide more direct flight paths in all weather conditions.
  • OPDs and Wake Recategorization at Memphis are making a difference with shorter flights and improved surface operations.
  • In the New York metropolitan area, a series of operational, technological and policy changes resulted in a considerable reduction in both times and delays across all phases of flight for the four largest airports in the region.
  • A new automation tool, Converging Runway Display Aid, helps space aircraft arriving on converging runways at Boston Logan International Airport reducing ground delays.
  • At San Francisco International Airport, instrument approaches provide access during low visibility conditions that were not previously possible, and allow the use of two active runways.