11.   Investigators concluded that a track worker had flipped a track switch that the train was crossing.

12.   Investigators say that a track worker apparently bumped the switching mechanism as the train was running across the switch.

13.   It also mandates improved living conditions for track workers.

14.   It slowed as track workers and investigators cleared the way.

15.   John Cunningham, an MTA spokesman, said a continued sticking point was the scheduling of track workers.

16.   Mrs. McCollum was right, said a former track worker who left a transit job two years ago on a disability pension.

17.   Seven nights a week, track workers split into teams with some removing trash and others laying poison.

18.   Sometimes, it is track workers.

19.   The MTA and the teamsters union, which represents track workers, welders and other railroad workers, broke off contract talks Thursday.

20.   The railroad has insisted that it needs the freedom to schedule track workers for night and weekend work, when train traffic is lightest, at their normal pay.