Hamilton's Aerotropolis Plan Local residents object to city proposal to pave farmland and pin employment hopes on expanding the airport. Dateline: Monday, August 08, 2005 by Maggie Hughes For those who are still wondering what the heck is an Aerotropolis, Mr Jack Santa Barbara, a board member for Environment Hamilton explains it this way. The city of Hamilton has five or six scenarios for growth, but all of them revolve around the Airport. Hamilton's overall goal is to become a transportation hub. He says the city of Hamilton's current plans for the next 30 years are based on a long-term plan called GRIDS â