Don't get me wrong, I'm not trying to compare Le Mans with the Petit. Just pointing out that the ticketing system is much better at the US tracks. Far less confusing.
Here's an areal shot of RA that I love:
I have to admit, that RA is my "home" track and I love going there. Just can't beat the intimacy of the track. It has a ton of personality for such a small track.