[learc83]

Most traffic is caused by the delay in human reaction times, and driverless cars can operate safely at much higher speeds and at much higher densities. Roads could handle massively more traffic if they were only packed with driverless cars.

[maximusprime]

Where the hell do you get that idea?

Most traffic in the US is caused by the lack of roundabouts.

[quatrevingts]

Roundabouts are not applicable to dense urban areas or highways, which is where the traffic is.

[praptak]

Even if this is so, a computer-driven cars can certainly use normal junctions much more effectively than humans. Robots could do this: http://www.youtube.com/watch?v=Vnba7Y86jC4 [lucky driver goes full speed through dense traffic] on routine basis.

[maximusprime]

Seriously doubt it, and I don't want to live in that world...

In any event, it's as likely as seeing people riding segways all over the place.

[learc83]

Have you been on a congested highway or interstate?