traffic jams

Johannesburg, South Africa had six hundred high-tech traffic signals, each with a cellular modem and GPS chip.

The idea was, if one malfunctioned, they'd call home immediately.

Our happy hour fact to amaze your drinking buddies with. Aggressive and timid driving behavior is what leads to stop-and-go traffic.

According to a new study conducted by researchers from Georgia Tech and the University of Lyon, in France, there would rarely be traffic if all drivers behaved the same way.

Aggressive drivers, who don't give the car in front of them enough space, and timid drivers, who need a big gap between themselves and the cars surrounding them, gum up the works for everybody else.

... also to stream music and video, play online games and/or perhaps make voice calls using a ... and still another wants to play an online game all at once?

If you've never tweaked ...

Welcome to the Engadget Holiday Gift Guide!

We know that between the traffic jams, mall moms on a mission, kids who'd rather be elsewhere, and the sheer crush of holiday cheer, it can be hard to find a little time to get your head straight and find the gifts that really count.

You know, we've made plenty of jokes about the DMB mobile TV functionality found in seemingly every GPS unit released in South Korea, but it looks like taxi drivers in the country take their distractions seriously -- serious enough to go to court.