On my daily trips into the city via the Babylon line, I've seen that equipment recently parked in the Holban Maintenance of Way yards. I wonder what it is also. As my train speeds by that area, I never really got a good look. I didn't even see the reporting marks. There were two cars, a converted passenger car of some sort, and a car that looked like a flat with some sort of equipment/generator housing. The generator car had some sort of large round logo and to my quick look appeared to be something like "American Railroad . . ."
The cars were there at the beginning of this week but as of yesterday were gone. Interesting.