ramp jumps (or other stunts)

[fwcain]

This might be a silly question, so apologies in advance . . .

Are there any provisions in the rules, in whichever edition, for jumping a ramp?

The reason I ask, is, I had an idea for a specific arena layout, wherein the racetrack was mostly a figure-eight, but with a ramp (to be jumped) as the cross-over. That is, traffic going from south-east to north-west goes on the "ground level," but traffic crossing over from south-west to north-east has to jump a ramp.

Is this legal, in any edition of rules-as-written (RAW)? Just wondering.

Thanks,
Franklin