The thing you realize about this signal timing tweaking going on right now is that the final 'timing priorities' that they eventually settle on remain arbitrary. How do we decide who gets to wait and for how long at intersections? What priorities do planners and decision makers place on different modes?

My point is that, if we wanted to, we could shave even more time off the Green Line's journey. It's a question of political will and mode prioritization.

I guess this is a way of asking: What is the theoretical shortest possible run time for the Green Line?