Ideas for new tracks

Hi to all,
How about submitting your ideas for tracks and those who know how to make them in blender or other 3d software can take these ideas and develop them further ?
to start I would like to submit a cross-over track, as in a train crossover except that it's another way for a race car to come instead of a train. The floor of course has hills and underground passages, that end up in a 2 way crossover.
http://img707.imageshack.us/img707/1618/crossovertrack.png
what do you think ?
Jorge
How about submitting your ideas for tracks and those who know how to make them in blender or other 3d software can take these ideas and develop them further ?
to start I would like to submit a cross-over track, as in a train crossover except that it's another way for a race car to come instead of a train. The floor of course has hills and underground passages, that end up in a 2 way crossover.
http://img707.imageshack.us/img707/1618/crossovertrack.png
what do you think ?
Jorge