Using ‘’geofencing,’’ an invisible GPS line around the perimeter of the airport. Uber and other companies now can block their Smartphone apps from hailing rides from airport live fresno where they lack the airport permit, Once a permit process is in place, that same GPS technology can detect when the service drivers come to the airport to pick up or drop off passengers, A Monthiy report of those trips would enable the city to bill the company for the trip fees, which meikle said are typically $3 in $4 trip