Airports are divided into landside and airside areas. Every cargo terminal has a landside and an airside. There are approximately of land immediately available for airside and landside development. A free inter-terminal shuttle bus connects all terminals on the landside. AirTrain is the airport's landside people-mover system. Both feature separate check-in facilities but are connected through a landside walkway. There are numerous landside facilities at IFP. Enthusiasts and the public can enter, free of charge, from the airport's landside. All visitors can access the terrace from the landside. Airlines are assigned a color depending on their location within the Landside Terminal Building. Works began in 1659 starting from the landside; the courtyard was completed by 1676. The Landside Terminal was designed with convenience in mind. The Short Term garage is attached to the Landside Terminal via the enclosed moving walkway. The airport complex consists of two main buildings, the "Landside Terminal" and the "Airside Terminal". Landside plans include construction of a consolidated rental car facility (CONRAC).