21.   The regulators have several weapons with which to prod the train operators and Railtrack into providing decent service.

22.   The subway officials said repeatedly that the signal system prevented accidents as long as the train operators obeyed train movement rules.

23.   The train operator also owns stakes in real estate developments like Tokyo Disneyland.

24.   The Transit Authority did not release the names of the train operator or the conductor, who were not injured.

25.   The train operator and a worker who controls which tracks trains use are on leave pending the outcome of the investigation, MARTA officials said.

26.   Train operators are not supposed to make the maneuver, known as keying by, without getting permission by radio from a control tower.

27.   Train operator douses fire, climbs back onto the train, train moves ahead.

28.   Train operators feel they have no choice but to put in the long hours.

29.   Train operators must rely on dispatchers, often hundreds of miles away, to ensure safe passage.

30.   Transit Authority officials said they had not determined last night whether the train operator had requested or been given permission to key by.