traffic accidents

Red-light cameras reduce fatal car crashes, according to a new study from the Insurance Institute for Highway Safety. In the cities studied, deaths involving red-light violations dropped by an average of nearly 25%. But don't expect the cameras to bring in city revenue.

After four straight years of declines, the number of pedestrian fatalities increased slightly in 2010, according to a preliminary Governors Highway Safety Association report. What's causing these walkers' deaths? Here are some probable causes.

The next time you find yourself talking on your cell while inching through a traffic jam, ignore the finger from the driver behind you, because you might be helping traffic planners solve the congestion problem. AirSage Inc. has come up with a clever way to identify highway traffic holdups by...