Safety Assessment of Implemented NextGen Operational Improvements

Since most NextGen Operational Improvements (OIs) have been implemented recently, there is no traditional safety statistics, such as the number of accidents and/or incidents available to perform their formal safety evaluations. In this paper, the authors present a process of safety assessment using precursors that may lead to unsafe outcomes. The authors use the radar track data to estimate traffic separations before and after NextGen OI implementation at Memphis International Airport (MEM). The Federal Aviation Administration (FAA) implemented Phase 1 of wake re-categorization (RECAT) separation standards at MEM in November 2012. The authors examine the counts of wake, proximity, and anomalous trajectory events for two 30-day samples of pre- and post-RECAT periods. While the paper focuses on the methodology and is not intended to provide a detailed safety evaluation of RECAT, the findings suggest that RECAT implementation did not adversely affect the air traffic safety.


  • English

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  • Accession Number: 01612633
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jun 29 2016 8:36AM