Per East Villager in the comments:
"Very happy to see that as it is now much safer to cross the streets here. Traffic noise is substantially reduced also, as vehicles must now drive slower.
Also all the traffic has been reconfigured! A large triangular work area has been closed off, and southbound vehicle traffic is being rerouted around the triangle. Is this the beginning of work for the Cooper pedestrian plaza?"
True! The traffic patterns have been reconfigured. I tried to get a photo of this, but I couldn't find a place to park.