A crosswalk is needed from Phelps Gate to the Green. There is a mid block crosswalk on Temple Street, in front of the Omni Hotel (which has far fewer pedestrians than Phelps Gate!), which could serve as a model.
Doing this would require bumping out the curbs and removing some parking spaces, in order to increase the visibility of pedestrians.
It would also help reduce speeding on the street. Cars currently travel through this area at very high speeds, putting pedestrians' lives at risk.