Airspace capacity overload identification using collision risk patterns by Ma, Chunyao, Cai, Qing, Alam, Sameer, Duong, Vu N.

“…Since the primary task of air traffic controllers is to manage traffic flow within the constraints imposed by safety requirements, i.e., to warrant the collision risk at a low level, in this paper, we use the aircraft mid-air collision risk for a given airspace as the indicator of airspace capacity overload. …”
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Collision risk assessment of reduced aircraft separation minima in procedural airspace using advanced communication and navigation by Cai, Qing, Ang, Haojie, Alam, Sameer

“…In order to maintain safety of air traffic operations, stringent aircraft separation standards are in place to reduce mid-air collisions. Note that the separation minima for aircraft flying in a procedural airspace (limited Communication, Navigation and Surveillance (CNS) services) are normally larger than those for a non-procedural airspace. …”
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