Sometimes when I wake up early for no reason, I just grab my camera and go somewhere. Last week I awoke very early and it was very cold, so I dressed warmly and headed for an interstate overpass in Oxford. This particular road has almost no guardrail over the highway, so I was feeling a little uneasy about setting my tripod up with my back to the roadway behind me. Nevertheless, I captured several long exposures of the traffic below, hands freezing the whole time. Some of the longer exposures blurred the vehicles so much that they became merely streaks of light, so I cut down the shutter speed to about half a second and got what I wanted.
As an aside, this image was processed with the latest version of Phase One's Capture One Pro and DXO's Silver Efex Pro was used for the B&W conversion. COP has absolutely nailed it with the ability to control luminosity masks and this makes editing complex images so much easier.