U.S., Nov. 27 -- The Worldwide Airport Slot Board (WASB), comprising Airports Council International (ACI World), the International Air Transport Association (IATA), and the Worldwide Airport Coordinators Group (WWACG) released a joint recommendation for airport slot use relief for the northern summer 2021 season. The organizations called on regulators worldwide to temporarily adopt more flexible slot rules in line with the recommendation as quickly as possible in order to preserve essential air transport connectivity.As a result of the collapse in demand from the COVID-19 crisis, some 65% of direct city pair connections vanished in the first quarter of 2020. Slot-regulated airports serve almost half of all passengers and are the backbone ...