The modern all plastic track is essentially identical to the 9V track. The switch happened about seven year ago (or maybe longer... my memory is terrible) and the two are compatible apart from one having conductive strips.
Thomas Burger has made LDraw parts of the switches but they do have many errors and need work. But still - for such a complicated part they're pretty good.
http://www.brickshelf.com/cgi-bin/gallery.cgi?f=203196
Thomas Burger has made LDraw parts of the switches but they do have many errors and need work. But still - for such a complicated part they're pretty good.
http://www.brickshelf.com/cgi-bin/gallery.cgi?f=203196