Doing it wrong

I've been dreaming about being on B5 for the last couple of nights.  It occurs to me that given the size of that place, it desperately needed some kind of horizontal transportation system other than the shuttle that ran near the axis.  Locations at "ground level" might be as much as a kilometer or so apart, or more.  It's not plausible that people would commute by taking an elevator up to the axis, then back down.

On a separate note: What is the interest rate on sleep debt?  :-(