Vehicle to Vehicle Warning System may save us from crashes

A new crash warning system that allows vehicles to "talk" to each other more than 900 feet away was demonstrated for federal officials Tuesday, marking a significant step in efforts by the government and automakers to put advanced communications technology in cars.

Using specialized WiFi signals that are emitted 10 times every second, the technology senses when a collision is imminent and alerts a driver through flashing red lights and beeps.

In the demonstration in the parking lot near RFK Stadium, the system notified a driver when it detected another car speeding through a red light in an upcoming intersection, of several cars blocking the highway ahead, and of a car zooming up from behind.

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