Thank you for reporting your concern to City of Cambridge via Commonwealth Connect. We have reviewed the information you provided our staff and will be investigating this issue further.

Thanks for your report. The No Turn On Red regulation is posted and visible from the STOP bar on Ames Street. The traffic signal pattern has been modified (temporarily) as a part of the construction work happening adjacent to the intersection. This work includes the installation of new traffic signals, relevant regulatory signage, and new traffic signal sequencing. Once the work is completed, any additional signs or modifications to existing signs will be evaluated as necessary.