ADL meaning in Transport & Travel ?

Adelaide Airport (IATA: ADL, ICAO: YPAD), also known as Adelaide International Airport, is the principal airport of Adelaide, South Australia and the fifth-busiest airport in Australia, servicing 8.5 million passengers in the financial year ending 30 June 2019. Located adjacent to West Beach, it is approximately 6 km (3.7 mi) west of the city centre. It has been operated privately by Adelaide Airport Limited under a long-term lease from the Commonwealth Government since 29 May 1998.: p 25 

First established in 1955, a new dual international/domestic terminal was opened in 2005 which has received numerous awards, including being named the world's second-best international airport (5–15 million passengers) in 2006. Also, it has been named Australia's best capital city airport in 2006, 2009 and 2011.

Over the financial year 2018/19, Adelaide Airport experienced passenger growth of 7% internationally and 1.3% for domestic and regional passengers from 2017's quarterly report; this added up to a new record number of passengers who passed through Adelaide Airport at 8,090,000 over the financial year. Adelaide Airport also experienced the greatest international growth out of any Australian port.