The District, Maryland and Virginia are nearly doubling their funding of a safety oversight group that monitors Metro, plus bolstering and reorganizing its staffing, after a federal audit found major weaknesses in the organization.

The little-known Tri-State Oversight Committee laid out the plans in a response due Tuesday to a scathing Federal Transit Administration audit of Metro’s safety problems. The audit, issued in March, cited the lack of a strong oversight group as one of the factors in Metro’s persistent and deadly safety problems.