Some say that the ghost train has only been seen in abandoned tunnels by subway workers.

Some of the club members are real railroaders - subway workers, for example.

Some of the injured were police officers and subway workers who tried to clean up the spills.

Some subway workers said they felt on edge spending all day underground.

But the complaints had to do mostly with the safety of subway workers, not the general public.

For most subway workers, the harsh side of the job is not something they bargain for.

Most riders do not even notice, because subway workers have become so efficient at cleanup.

And when the time comes, subway workers will then have to tunnel right through that concrete to build a new line.

At 165 feet below, one can hear radio conversations among subway workers.

Since 1946, at least 238 subway workers have been killed on the job; nine in the last seven years.