PHOTO: Scotland's Glasgow Airport is prepared to introduce a drop-off charge at the end of April. (Photo via Flickr/ITS Congresses)  In an effort to combat increasing congestion amid sustained growth, Scotland's Glasgow Airport is set to introduce a controversial "kiss-and-drop" charge to visitors dropping off air travelers at the terminal entrance later this year, the Telegraph reported. Expected to roll out at the end of April following the opening of a new pick-up and drop-off facility, the fee will be assessed based on the length of time drivers remain in the area. Drivers staying at least 10 minutes will be charged $2.50 (£2). But a spokesperson for the airport told the Telegraph that those that are there for longer will receive an incremental charge. Similar pick-up charges have been in place at the airport for nearly a decade and drop-off fees are commonplace at most other airports throughout the U.K. Nonetheless, motoring association RAC called the new charge "unnecessarily punitive" and already hundreds of people have signed a petition against the fee. While undoubtedly unpopular with motorists, the fee would be far from the most expensive in the U.K., with Luton Airport and London Stansted Airport each charging $3.75 (£3) for 10 minutes. READ MORE: Dubai Airport CEO Says He's Open to Helping Donald Trump, American Airports "I appreciate that not everyone will be supportive of the new charging structure, however, we will always continue to provide a free option [in the long-stay car park]," the airport's managing director Amanda McMillan told the Telegraph. "We have resisted introducing a drop-off charge despite most airports of our size having similar arrangements in place for many years, however, having exhausted all possible alternatives we have now reached a point whereby a chargeable facility is the only way to address congestion, discourage non-airport traffic and encourage best use of our road network." Glasgow Airport currently hosts approximately 9.2 million passengers a year, up significantly from the 6.5 million it served when the current drop-off area was implemented. Follow @_Pat_Clarke