Question: The other day I came across a railroad crossing sign with the word “EXEMPT” placed on it. ... a sign below the crossbuck indicates the number of tracks.

Answer: An X-shaped sign identifies a railroad crossing. If there is more than one track, a sign below the crossbuck indicates the number of tracks. Warning signs, pavement markings, gates and ...

The Railroad Safety Improvement Act of 2008 mandated that all railroad companies install ENS signs at every crossing in the U.S. by 2017, including those that are temporarily or permanently closed.