Editing Single European Sky (section)

=== Advantages ===
{{See also|Mitigation of aviation's environmental impact#Route optimization}}
The Single European Sky is hoped to benefit airspace users by ensuring the safe and efficient utilisation of airspace and the air traffic management system within and beyond the EU.
* '''Airspace efficiency''': Airspace management is planned to move away from the current domination by [[national border]]s to the use of 'functional airspace blocks' the boundaries of which will be designed to maximise the efficiency of the airspace.<ref name="Morgan"/>
* '''Safety, capacity, management efficiency''': Within the airspace, air traffic management, while continuing to have safety as its primary objective, will also be driven by the requirements of the airspace user and the need to provide for increasing air traffic. The aim is to use [[air traffic control|air traffic management]] that is more closely based on desired flight patterns leading to greater safety (by preventing congestion), efficiency and capacity.{{citation needed|date=September 2021}} The SES aims to triple capacity, cut 10% in flight times, and halve cancellations and delays.<ref name="CAPA 2012"/>
* '''{{CO2}} emissions and fuel cost cuts''': According to the European Commission and the aviation industry itself, the SES could cut aviation's {{CO2}} emissions by up to 10%,<ref name="Morgan"/> or 50 million tonnes.<ref name="CAPA 2012"/> According to IATA, the SES would reduce airlines' annual fuel costs by 5.5 billion euros.<ref name="CAPA 2012"/>
* '''Crisis management''': The SES would be able to manage transport disruptions (such as the [[air travel disruption after the 2010 Eyjafjallajökull eruption|2010 Icelandic volcano eruption]]),<ref name="KanterClark"/> overcrowding (as was happening in 2019), as well as collapses in air travel demand (as [[Impact of the COVID-19 pandemic on aviation|happened due to the COVID-19 pandemic in 2020]]).<ref name="Morgan"/>
* '''Management cost reduction and job creation''': The SES would require far fewer air traffic controllers, who have high salaries, thus substantially cutting personnel costs<ref name="van der Heide"/> by about 50%;<ref name="CAPA 2012"/> the number of control centres might be reduced from about 60 to about 20.<ref name="Ash lessons"/> Meanwhile, the development of [[Single European Sky ATM Research]] (SESAR) technology could create 328,000 jobs across Europe. By comparison, the 27 member states systems employed a little under 58,000 workers (including 16,900 air traffic controllers) in 2010.<ref name="CAPA 2012"/>
* '''Innovative coordination''': The SES would stimulate coordination on innovation in areas such as sustainability.{{citation needed|date=September 2021}}
* '''Formation flying''': The SES would enable [[formation flying]], including [[Airbus]]' fello'fly project, which will save energy and benefit from an updraft.<ref name="Morgan"/>