Apron or Ramp is a designated area of an airport where aircraft are parked, unloaded, loaded, refueled, and boarded by passengers. The apron is typically located adjacent to the terminal building.
The apron is a critical part of the airport infrastructure, as it is where the aircraft are serviced and prepared for their next flight. It is also where ground support equipment, such as baggage carts, fuel trucks, and catering trucks, operate in close proximity to the aircraft.
The Apron is typically divided into different sections, depending on the type and size of the aircraft, as well as the functions that are being performed. For example, there may be separate areas for wide-body aircraft, narrow-body aircraft, and regional jets, as well as separate areas for de-icing or maintenance.
The below image shows an Apron, Taxiways and a Runway.