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The obstacles have been acknowledged by board members and transit leaders, and a state-appointed peer review group that advises the authority has suggested the plan be reexamined.

A state-appointed peer review group has repeatedly advised the authority to consider alternative plans for the project.

“This also impacts the pre-planned rollout of the NIH grant review processes, which debuts a simplified peer review framework for most research project grants,” Rajnarayanan said.

Though safety measures have been put in place, a peer review of government reports by engineering company Jacobs warned that the structure could "weaken further" in harsh weather.

The peer reviewed article drew on multiple sources, including a survey shared with Cambridge Children's Network and charities.