This is a “forward collision avoidance and mitigation braking” system.

Volvo shows auto braking system for semi-truck crash prevention

Volvo shows how the auto-braking system could prevent thousands of rear-end truck crashes a year

When radar and sensors detect a slow-moving vehicle or stopped car ahead, the “F-CAM” system warns truck driver.

If the driver doesn’t brake, the system takes over to avoid an imminent rear-end crash.

Crash-avoidance braking is a standard safety feature on almost all new cars.

But not on heavy tractor-trailers, which can weigh 20-30 times more than a car, and take much longer to stop.

Requiring this technology in trucks could prevent 2,500 truck crashes a year, and hundreds of crash deaths. The economic benefit of preventing those accidents: over $3 billion, according to the National Highway Transportation Safety Administration.

In Europe, these emergency braking systems will be required in all new trucks by November 2015.

Some U.S. trucking carriers use crash-avoidance braking systems voluntarily. Ted Scott, director of engineering for the American Trucking Association said, “many of our companies using them are seeing some significant safety advantages.

So why aren’t collision-avoidance braking systems mandatory in commercial semi-trucks in the U.S.?