How many 128 commutes are purely circumferential though?

Sure, the main distance might be around the ring, but the fatal problem with the concept of the suburban office park is that it means that there's a last mile (or two) problem on both ends, and not just one.

Imagine if there were a rail line that goes where 128 does. Now how many work place are truly walkable from it?

Lots are surprisingly close, but walkable?