traffic

Hot on the heels of the Android 2.0 mobile OS release, Google's sweetening the deal: the Eclair-flavored refresh to their mapping app turns handsets into feature-rich GPS devices -- for free.

Car accidents kill 115 people a day in the U.S. and cost an annual $230 billion. Cautious drivers can avoid only so much danger, especially when it's a car running a red light, or a truck that pops out of a blind spot. But commuting could get safer with new in-car technology that warns you of that vehicle just around the corner — and even hits the brakes for you.

If you thought there was no science behind getting a speeding ticket, you’re right, kind of… It’s probably more of a case of economics. In North Carolina, at least, – where researchers examined 96 counties for a report in an upcoming issue of the Journal of Law and Economics – when local government revenue goes down, ticketing goes up.

Yes we’ve all said it before: public safety isn’t the only motivation for tickets. (Can’t you just give me a warning, Officer?) But now there is scientific proof of that long held suspicion.

Traffic delays are the bane of any commuter—even those who use a GPS, which warns you about traffic jams on your route to work. The reason: getting real-time data is difficult as the traffic information is routed from the scene to a massive database that only feeds GPS units on regular intervals.

The only thing more frustrating than creeping your way toward the site of a bottleneck on the highway only to discover the accident is on the other side of the median are the times when you make it through and discover, as far as you can tell, nothing was holding up the traffic. Japanese researchers have now demonstrated that the "nothing" may in fact be the traffic crossing a threshold of density of cars on the road. Too many cars means that small slow downs by a few drivers equals up to big backups miles away.

Add another study to the growing body of evidence that red-light cameras cause more accidents than they prevent. University of South Florida researchers found drivers are more likely to attempt to stop abruptly at camera intersections than otherwise, which results in a significant increase in injuries from rear end collisions. Red-light cameras are designed to snap a photo of a cars license plate if the driver moves through the intersection under a red light. The theory should hold that if drivers know theyre being watched, theyll be less likely to run the lights.