3d roller coaster

Hi can any one direct me to a good code sample of a basic roller coaster type program????

Thanks

[Tim Stirling]

Sorry but I have to boast about this. I am great friend with Chris Sawyer who made the kick ass game Roller Coaster Tycoon (and Transport Tycoon) I could get some hints from him, however it is only really a 2d tilling technique.

[Michael Steinberg]

Don't tell anything about Transport Tycoon. I have been crazy. I played it through weeks and months. Actually, I would like to now... So stop talking 'bout it!!!! http://www.opengl.org/discussion_boards/ubb/smile.gif

[zed]

IIRC www.zintel.com (http://www.zintel.com) has a roallercoaster like demo