07-18-2017, 12:38 PM
I *think* it's the idea of only having to change the lights for maybe 5-10 seconds of flow to empty all queued cars if no pedestrians are allowed to block cars using the intersection, versus at least 15-20+ seconds required just to let pedestrians cross, and maybe more to allow advance green/post-pedestrian clearing of cars. Not that I agree with that, I just think that this is the reasoning.