GPS装備機の経路オフセットによる垂直衝突危険度の軽減効果

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This paper deals with the effects of systematic offsets on an average lateral overlap probability of aircraft pairs assigned to the adjacent flight levels. The probability was calculated as a function of the rate of GPS equipped aircraft using two mixed distribution models of lateral path-keeping errors for a mixed population (i.e., the GPS equipped and non-GPS equipped aircraft) in environments of North Pacific routes. Assuming that only the pairs of GPS equipped aircraft are flying in systematic offsets, the probability for a route, P_y(0)_<av>, was calculated numerically. The results suggest that a small amount of offsets reduce the probability significantly if the rate of the GPS equipped aircraft is high. The introduction of systematic offsets would result in significant reduction of vertical collision risk for GPS equipped aircraft.
社団法人日本航海学会の論文
2000-03-25