BBC has graphically mapped every road casualty on every road in Great Britain from 1999 to 2010. That’s 2,396,750 crashes, with each individual point of light representing an individual crash resulting in a casualty (that’s injury or death). It’s part of a larger interactive package BBC has up on its site right now in which reporters examine the island’s highways and byways. Particularly cool: the time-lapse video that animates--via a heat map like the one above--where accidents occurred over the course of a given week. As rush hours come and go, the map almost appears to be breathing. Check it out over at BBC.