"Your Speed" sign uses some creative unit conversion...

Signs which display your speed alongside the road's speed limit are usually pretty straightforward; the only brain functions required are subtraction and guilt. But as Marc van Wageningen posts at DirectDaily, the Elm Grove police department has applied some creative unit conversion to your miles-per-hour: signs are displayed in thousands of dollars of accident bills, days in hospital bed, percentage chance of crashing, etc. The question is whether this is any better than the basic-guilt strategy of normal speed-checking signs. Does it make you think a little more about speeding? Sure. Does that absentmindedness ironically increase your chance of getting into an accident? Hmm...

[via Gizmodo]