Metro has made improvements in recent months, but there is a lot of work to be done in the areas of safety and maintenance, according to a report by the Tri-State Oversight Committee.
The newly released report identifies deficiencies and several areas of concern, including the need for better worker safety practices and training.
In one example cited in the report, an investigator witnessed a track inspector give the "proceed" hand signal before clearing the right of way on the tracks.
The report also cites the need for better system maintenance, including work on escalators.
Metro was also found to need improvement in the reporting of incidents and accidents. The study says Metro has a backlog of investigations that need to be brought to closure.