Hello, I'm designing a parking structure for a hospital as my senior project. I'm going to use one way prestress slab and beams, and reinforce concrete column and footings design. The problem is, another group is also designing a parking structure for an airport, so I need to make my parking structure stand out! I did some research and I liked the idea of green roof and solar panels, also 5% recycled fly ash in the concrete mixture. Anyone has any unique, fresh, green idea to share? thanks!!