Risk Assessment Method to Support Modification of Airfield Separation Standards (2011) / Chapter Skim
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Pages 25-29
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From page 25... ...
– Ref: Turbojet Ceiling Height feet Visibility statute miles Crosswind knots Tailwind knots Gusts Yes/No – Ref: No Icing Conditions Yes/No – Ref: No Snow Yes/No – Ref: No Rain Yes/No – Ref: No Frozen Precipitation Yes/No – Ref: No Fog Yes/No – Ref: No Air Temperature deg C Turboprop Aircraft Yes/No – Ref: No NonhubApt Yes/No – – Ref: Yes for hub airport Log Criticality Factor If Log(CF) > 0, available runway distance is smaller than required distance Night Conditions Night, Dawn or Dusk – Ref: Daylight Notes: Ref: indicates the reference category against which the odds ratios should be interpreted.
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From page 26... ...
The rates are presented in Table 9 and were combined with the location models to build the risk plots presented in Appendix A The average incident rates are based on the number of accidents and incidents, and the total traffic of relevant operations from 1982 to 2009.
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From page 27... ...
Type of Accident Type of Data Model R2 # of Points LDVO Y 803946.002568.0}{ yeydP 99.5% 126 TOVO Y 863461.001639.0}{ yeydP 94.2% 39 Table 10. Summary of veer-off location models.
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From page 28... ...
categories. The airports were characterized according to geographic region, aircraft operations, fleet mix, airport reference code, and NPIAS classification.
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From page 29... ...
Airports included in the MOS survey. the analysis results provided an insight into the quantitative risk associated with each case.
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