The estimation of collision risk on identical airway

In the process of airspace planning collision risk estimates are very necessary steps and must be carried. In this paper, a modeling method of collision risk model of air traffic are researched and discussed based on the actual needs of airspace planning. The collision risk model on identical airway will be proposed with arrival time interval distribution and the speeds of aircraft. By using the proposed collision risk model in this paper the collision risk when the speeds of aircraft are different can be estimated, the influences of arrival time interval minimum, separation standard, flight time and speeds of aircraft on the collision risk can be calculated. Those provide the collision risk estimation method for the set of minimum time interval on the flight segments in the process of airspace planning, meanwhile, the means to research the collision risk when aircraft are flying with the different speeds on the flight segment.