Metrorail employees are working a lot these days. Too much, you might even say:

Metrorail employees in safety-critical jobs — including train operators, supervisors and maintenance technicians — are working longer hours than allowed, a workload that a joint analysis says could lead to fatigue and accidents.

The Tri-State Oversight Committee (TOC), which monitors safety at Metro, partnered with the transit authority for five months to study how it manages fatigue among its employees. The results are to be presented Thursday to Metro’s board of directors.

According to a copy of the final report, Metro employees in safety-critical jobs work a “de facto” 16-hour day maximum, and there are no limits on the number of consecutive days an employee works.

Workers also complain that unfilled positions are forcing employees to take on overtime. The full report findings will be presented to the Metro Board on Thursday.