[Gringamuyloca]

I have looked honest... here, there,  google... even read my readme(s) 

Is it safe to assume that rural road capacities are the same as "regular" roads?...

again, a huge thank you to all who make this game worth playing...

Thanks,

[deathtopumpkins]

The rural road pieces are purely cosmetic, so the game should, I believe, consider them exactly the same as regular draggable road. So same capacities.

[Blue Lightning]

Rural Roads have the same capacity as regular roads. RR is purely cosmetic.

[KoV Liberty]

Yep. 

[chris0101]

Should be the same unless you have a different traffic simulator. I know that they are different for Simulation Z; check Z's section out. They are 2.5x greater on the simulation Z per tile I believe:

http://sc4devotion.com/forums/index.php?topic=5382.0

[Tarkus]

Should be the same unless you have a different traffic simulator. I know that they are different for Simulation Z; check Z's section out. They are 2.5x greater on the simulation Z per tile I believe:

That would be correct for the Rural Highway.  The aforementioned Rural Road puzzle pieces are a separate thing entirely, though.

-Alex