This will defiantly directly affect the railroads.
No trains needed to move coal will mean less train crews, less maintenance on motive power and coal hoppers, this will lead to less maintenance also out on the rail, less train crews, maintenance personal leads to layoff's layoff's lead to people not buying new vehicles houses and other items it goes on and on.
It is truly a trickle down affect.
The big 4 railroads are going to feel the effects of this loss revenue of coal and it's going to hurt their bottom line big time.