In today’s efficient operations, aircraft are either separated by wake turbulence rules or by runway and radar separations that apply when wake turbulence separations are not required. These separations requirements are expressed by time between departures and by distance for arrivals on final approach.
Existing departure and arrival wake turbulence separations are considered to be over-conservative in that they are applied by the use of fixed values regardless of the prevailing meteorological condition impact on the transport and decay of the wake turbulence. A dynamic and flexible application of separations could lead to a more efficient but equally safe way of mitigating against wake encounter risks.
SESAR 2020 Wave 2 PJ02 Work Package 04 (PJ02-WP04) aims to increase the efficiency of runway operations by optimising separation minima in capacity constrained airports.Click for more info