1. Procedure designed for use between arrivals on final approach or between departures from the runway, based on an optimum adjusting of the needed separation between two aircraft taking into account their respective characteristics and giving Controllers more dynamic separation options.
2. A wake vortex separation based on individual aircraft type.
1. SESAR Concept of Operations Step 1 Edition 2013 (Ed. 01.02.00)
2. SESAR (2011) working package 6, Airport Definitions Team
Lexicon Release 2015.1