[Jeff Rodriguez]

Originally Posted by russell

Ok, I just want to be very clear on this. Is the loading zone three dimensional, or is it two dimensional? I think the problem here is their use of the word "in" rather than the word "on". "In" kind of implies a three dimensional area, but as I am reading things it is actually two dimensional.

It is two dimensional.

The same 'in' is used when referring to an end zone in football, but we know it's two dimensional.
"Did he get in the end zone?"