I saw that but don't think it's a crossing gate because there is no road crossing the tracks. I think what appears to be some type of road or driveway goes behind the shack but doesn't go over the tracks. There is only grass on the other side of the tracks.Crossing gate at upper right by the little brown shack
I'm just going by the photo itself and not by what it looks like now. There is what looks like a gravel area behind the brown shed that does not cross the tracks. On the opposite side of the gravel area is just grass and a small white structure. The vertical black and white object to the left of the brown shed does look like it could be a crossing gate but at the time of the photo there is no crossing at that spot.It is in fact a road crossing IN73/S Broad St, looked the location up on google street view, the EL line is no longer there, its the Erie Lackawanna trail now
Trains typically run on the right parallel track. I don't see any gate that would protect the crossing from a train travelling from the upper right of the photo toward the crossing on the right main. The circled object, which is what we are discussing, would protect the crossing only for a train running on the left main.