The Bay Area Rapid Transit district is eliminating its practice of making worker teams solely responsible for their own safety on the tracks of the commuter rail line.

The move comes after two BART workers were killed Saturday in an accident on an above-ground section of track between two stations.

BART Assistant General Manager Paul Oversier told the transit agency's board of directors on Thursday that the rules being jettisoned are the No. 1 issue that federal safety investigators are studying in their review of the accident.

The two workers, both experienced transportation engineers, had received what BART calls simple approval to inspect the tracks.

Under that process, one worker is designated as a lookout to warn the other of an oncoming train in a work zone.

Now, train operators will either have to slow down significantly or stop as they approach a work zone.