Ok, I'm all on board with this. From what I've seen, the flanger blase itself looked to be a double-ended plow blade (that is, two blades back-to-back as if for bi-directional operation) to dig out between the rails. I don't remember seeing additional blades for moving the snow away from the rails themselves on the 2' version, but I'm sure they existed in one form or another.
The thing to remember is, if you're going to start flanger operations, you're going to need to add flanger SIGNS at every crossing, switch, and guardrail. Otherwise,...
...OUCH!