Improved Computation Methods on Longitudinal Collision Risk

Reducing the longitudinal separation minima could increase the airspace capacity and decrease the delays, so it is significant to evaluate the longitudinal collision risk under the different separation minima. This paper present the collision risk calculating methods of longitudinal separation for procedural control and radar control in the same route and the same flight level, and the collision risks in different controls are calculated by using the new methods. The results illustrate the longitudinal separation minima meet the Target Level of Safety.