There has been congestion at Adelaide Airport as a new high-rise car park opened adjacent to the terminal.
The five-level car park provides an extra 2,000 short term-spaces for private and rental vehicles.
There are new passenger pick-up and drop-off areas.
Airport operations manager Vince Scanlon conceded there was some congestion on the first day.
"If you could allow an extra five or 10 minutes and just pay attention to the signs," he urged.
Taxi driver Tony thought more signage was needed.
"I arrived there this morning at around about quarter to five and I tell you it was an absolute disgrace," he said.
"The cars were lined up almost half way down Burbridge Road (Sir Donald Bradman Drive) heading towards Marion Road." Mr Scanlon said the teething issues would be addressed.
"We've been monitoring both driver behaviour, we've also been monitoring signage changes that need to be made to try and assist with drivers directions, but overall I think given the size of the project and the complexity, things are progressing quite well," he said.
The charge to park for the first hour has increased from $4 to $6.