Volvo says it plans to share information between cars over the Internet through the cloud.

The Swedish automaker says it soon will be possible for cars to warn other cars about road hazards, such as potholes and oil spills. Some sensors in cars now are capable of detecting and measuring change in road surfaces.

Volvo says it expects to sell vehicles that will be able to drive themselves on freeways. The “on-ramp to off-ramp” technology will use cameras lasers and radar sensors to keep pace with other traffic, steer the car in a lane and maintain safe distance from other vehicles on the road.

Automaker Audi and many others believe it will be at least another 10 years before autonomous cars can operate in cities, and handle city traffic and spot pedestrians and cyclists.

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