They sort of already do that with the rail crossing dingy bells and lights, but both usually happen if the crossing apparatus is present. I think its required here?

On a side note, I had to take a weird back way home the other day, due to highway closure, and found a house that has its own small scale private rail crossing with the drop bars and dingy bells and lights and everything, due to the rail hugging the road on the wrong side for them. It was very cute.