From Audi, a website that lets you monitor a Road Frustration Index. I’m not sure how you’d keep track of this driving info as a driver yourself, unless you had your navigator checking for you. And their beta version doesn’t seem to draw any live data. I’ve read the same “my butt is falling asleep” tweet from Los Angeles each time I’ve checked. But I always like the idea of using maps as one element of information graphics and visualization.