This is just an experiment in motion blur, coupled with some experimental post-processing.  I experimenting with moving my camera and the lens' zoom during a long exposure.  I then desaturated the image using Photoshop's channel mixer, and ran the image through a couple curves adjustments.  I pushed the image pretty hard via curves, but it was necessary to add enough interest to encourage the viewer to study the lines of the composition.  It also added a dark, grungy quality that I think adds interest.

The technique behind the motion blur is more art than science.  I tried a lot of different approaches to focus, camera movement, lens zoom, and exposure time.  I learned that the best images have shiny objects that make light trails to add interest.  I also learned to add clarity to the image by remaining still for the first half of the camera's shutter time.  The rest was just a function of selecting the best of the 30 shots I took after getting that little bit of basic technique figured out.   

I won't say that I think this is any great shakes as art.  I don't expect that many people will take a liking to it.  But I like it, and that's good enough for me.

I originally chose a less-dramatic amount of curves adjustment.  Here is that version.  I'd welcome your opinion on which you prefer.
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(Click on the image to view the full-size version)