LEED NC 2009

Our project is a major railway station in Qatar. The shape of the structure is very irregular (i.e.some escalators on the grade level going to the underground levels are not part of the main station building). Almost each level has a different shape from the level above or below it. There are connected walkways leading to different platforms / levels. And there are also tunnels for the rails etc.

Does anybody have experience on rail stations? Can anyone point me to similar case studies that may have been already done or completed? How do we set the LEED project boundary for this type of structure?

Thanks for your help!