This railroad bridge struck me as being very symmetric.  Waiting for a train to pass and allowing it to blur across the image added a visual element that contributed to this symmetry.  The subjects here are the bridge and the symmetry – this is why the train is blurred – so that it doesn’t distract from the subjects.  I like h0w the warm glow of the trains interior contrasts with the dusk outside.  After completing this, I wondered how the scene would change in the daytime.

In the full daylight, one of the big differences is that we can see the ribbon of color that is the train blurring past.  The graffiti on the column below the bridge is more noticeable.  The colors are different.  But the subjects remain the same.

Above we have a very large air conditioner. I would hate to have the electric bill on this thing!

and a large transformer.
These two items were photographed at the new White Bluffs Elementary in Richland, Washington.