The number of parking tickets issued by Dundee City Council rose by 50%, to nearly 30,000, last year.
Parking wardens handed out 28,629 tickets in 2015, up from 18,638 the previous year.
However, more than half of all appeals lodged against the tickets were successful.
Of the 4,008 informal appeals lodged, 2,007 were successful. In addition, a further 1,185 formal appeals were made, with 693 successfully overturned.
And the council received 78 appeals through the Scottish Parking Appeals Service, with nine successes.
The figures were higher than the previous year when only 1,330 of more than 2,600 informal appeals were approved.
Paul Waters, head of road policy for the AA, said: “It’s good that so many tickets were cancelled at an early stage as it shows the council aren’t throwing the letters away and are listening to mitigating circumstances.
“Some councils routinely reject the first challenge and force a formal representation, so Dundee is better for that.”
“It shows that the process works and the right checks and balances are in place. But a 50% success rate also suggests some of those paid tickets were challengeable.
“People have a tendency to think they were just unlucky and don’t consider how clear the parking restrictions were.
“It would also be nice if the Scottish Parking Appeals Service was more visible as the independent adjudicator. It doesn’t have a website but the public need to know they’re fighting for them.”
However, Labour councillor Kevin Keenan said that the council was losing money as a result of granting too many appeals.
He said: “In the last few years, revenue on parking has been quite low well below the target.
“It’s quite concerning that so many who appealed have been successful.”
A Dundee City Council spokesman said: “All motorists issued with a penalty charge notice have the right to appeal and each case is considered on its own merits.
“Appeals can be done online or in writing as detailed on the reverse of the notice.”
Last month The Courier revealed the 10 streets most often visited by parking wardens in Dundee.
Dock Street came top, with more than 3,700 visits in a 12-month period, followed by Perth Road and Brook Street in Broughty Ferry.