An example is the Frankfurt airport case, in which the owners of the airport were found to be dominant in the market for the provision of take-off and landing services at and around Frankfurt, and they were required to open up access to the airport apron to ground-handling service providers.In the current case before the Court of Session, PIK Facilities Ltd v Watson's Ayr-Park Ltd, which is a member of the Scottish Independent Airport Park and Ride Association, that is the very doctrine upon which the park-and-ride operator relied before the Court of Session.