Lden/Lnight

Lden/Lnight

day-evening-night/night-time average sound level

More lexicon entries

Term Definition
CA

competent authority

RIA

regulatory impact assessment

IAS

indicated airspeed

ETS

EU emissions trading system

SESAR

single European sky ATM research

LFFZ

laser-beam free flight zone

rpm

revolutions per minute

AWOSG

All Weather Operations Steering Group (JAA)

ASC

Air Safety Committee

SSR

secondary surveillance radar

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