United States Department of Transportation
i
An Assessment of Time-Based Active Reminders on Weather Related Behavior and Decision Making of General Aviation Pilots
-
2020-07-01
[PDF-8.38 MB]
Details:
-
Creators:
-
Corporate Creators:
-
Corporate Contributors:
-
Subject/TRT Terms:
-
Publication/ Report Number:
-
DOI:
-
Resource Type:
-
Geographical Coverage:
-
Corporate Publisher:
-
Abstract:Objective: We investigated pilot weather assessments and pilot ability to assess the out-the-window visibility. Specifically, we assessed the impact of a time-based active reminder on pilot decision-making. The active reminder indicated the amount of time in which a pilot might encroach within 20 miles of severe weather along their route. Background: In a previous study, the WTIC group evaluated a distance-based active reminder to indicate pilot proximity to severe weather. Method: Fifty private pilots participated in the study. The pilots were randomly allocated to either the 10 nm or 20 nm active reminder condition to fly in a scenario with degrading visibility conditions. Results: We found no important differences between the AR10 and AR20 groups with regards to aircraft altitude, AWOS usage, distance-to-weather, flight decision-making, and the ability of pilots to provide forward visibility estimates. This result implies that the difference in lead-time (i.e., 10 versus 20 miles) did not affect the flying behavior of pilots. Both pilot groups flew equally close to hazardous weather cells (i.e., ≥ 30 dBZ precipitation cells) with a mean distance-to-weather of 9.93 to 17.2 miles (95% HDIs). Even more striking, comparing the present distance-to-weather results with the distance-to-weather data from the Ahlstrom et al. (2019a) study showed that a time-based AR yield a much larger intra-group dispersion (e.g., SD) of the distance-to-weather data, expressed as a greater variability among pilots with regards to how closely they flew to hazardous weather cells.
-
Format:
-
Collection(s):
-
Main Document Checksum:
-
Download URL:
-
File Type:
