I noticed the same thing this weekend. There is no default pedestrian green, and the button appears to be broken. Dangerous as we had to cross a red, with still a green light for cars. Please assign a high priority to this item.

Thank you for reporting this issue to the City of Cambridge. Unfortunately, the City is not responsible for addressing issues on state property, but we've shared this report with the Massachusetts Dept. of Conservation & Recreation (DCR) and asked them to address. Please contact DCR Community Relations at 617-626-4973 for direct follow-up about this.