I understand that the changes to Western and River between Central Sq and the river are intended to reduce the car traffic through Central Sq. I have no interest in debating the logic of that, but I do wonder whether there is a timetable for fixing some obvious errors. I can't find any information about this from searching city websites.
Both directions on Franklin St, when approaching Western/River, when the light is green, opposing traffic has a red. Yet there are no green arrows, so people who are unfamiliar wait and clog the intersection. The light is so short that it makes a big difference in whether the intersection can clear each cycle. It very often does not clear.
Westbound on Green St, only bus traffic is allowed, yet the light cycles apparently have no sensing for busses. This isn't rocket science.