01622479

Component

https://doi.org/10.3141/2603-01

At the airfield in hub airports, many activities occur that involve a range of participants, including various-size aircraft, ground vehicles, and workers. The safety management system is FAA’s approach for systematically managing aviation safety. A major component of the safety management system is safety risk management (SRM), which entails analysis, assessment, and control of safety risks, including risks on the airfield. Current SRM has few specific safety models to estimate the likelihood or frequency of risks. This paper presents an example for development and incorporation of safety models into SRM. Specifically, it discusses safety models for runway incursion that use the following variables: total and general aviation operations, length of runway by type, number of taxiway intersections, snowfall, precipitation, number of hot spots, and construction activity. Categorization and processing of data were significant because each variable used could take on multiple forms, and some types of data involved review of airfield diagrams. The data used were from 137 U.S. hub airports for 2009 through 2014. For modeling, the negative multinomial distribution was used because it proved suitable for representing overdispersed data such as runway incursion frequency. Performance of the models was assessed through the goodness-of-fit measures of log likelihood, overdispersion, and cumu- lative residual plots. Models were developed for five severity categories of runway incursions and three types of surface events. The safety model- ing approach presented here can serve as a foundation for development of other safety models that can be integrated into SRM to enable quantitative analysis of safety risks.

01637979

17-01566

English

0000-0002-8857-9648

pp 1-12

2017

Transportation Research Record: Journal of the Transportation Research Board

9780309441490

Digital/other

Figures; References; Tables

Airports; Aviation safety; Hubs; Multinomial logits; Risk management; Runway incursions

Safety Management Systems

United States

Aviation; Planning and Forecasting; Safety and Human Factors; Terminals and Facilities

TRIS, TRB, ATRI

Dec 8 2016 10:31AM

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