This document provides an introduction to airport engineering concepts related to the apron and terminal area. It discusses: 1. The apron is the area where aircraft park and includes parking, maintenance, and service areas with taxi lanes. Aircraft stands are portions of the apron intended for parking during boarding and unloading. 2. Factors that affect apron size include the size of aircraft stands, number of gate positions, and aircraft parking systems like frontal, open apron, finger, and satellite systems. 3. The terminal area serves as the focal point of airport activities and includes terminals, vehicle parking, hangars, cargo facilities, and amenities for passengers. The terminal building provides direct access between the ap