I got an account with the site that distributes the sensor data from the loops in the freeways (pictured here). Here's the first hack, a boring map of the sensors with 10% of the speeds labeled. Code is in darcs.
This screenshot shows my map on the right; a comparable sigalert screenshot on the left.

Now I'm serving http://bigasterisk.com/freeway/ with a very simple report of a stretch of freeway.
More plans in the readme.
Me: Hey, check out these credits of The Dark Knight on this IMAX projector. You can really see how the rolling loop projection system makes a rock-solid image. Those 35mm projectors we normally experience have terrible bounce compared to this.
Kelsi: They're not the technology we need, but they are the technology we deserve.
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