Watch a test and explanation of the system: http://www.youtube.com/watch?v=WH4F7J7AAFE
On a test track in the new Volvo FH, together with test drivers you get to experience how the Collision Warning with Emergency Brake system can avoid a rear end collision, even if its tight!
The tractor trailer is fully loaded to 40 tons GCW.
Read more: http://www.volvotrucks.com/trucks/global/en-gb/newsmedia/pressreleases/Pages/pressreleases.aspx?pubId=14200
Animation of the system: http://www.youtube.com/watch?v=LBT3tB_AQQA