He even gets into different types of crash attenuators -- my personal favorite is the water- or sand-filled barrels invented by racing driver John Fitch, aka Fitch Barriers-- and how they work.

The devices are called impact attenuators, or, more simply, crash cushions. The color is meant to keep vehicles from hitting hazards, like the concrete walls of an exit ramp.

The crash at Le Mans in 1955 was an unbelievable tragedy, but the crash barriers that came from it have been estimated to have saved 17,000 lives. Comment(s) Recommended ...

Our core product lines include guardrail, end terminals, cable and steel longitudinal barriers, crash cushions, truck and trailer mounted attenuators, water-filled barricades, sign supports, and ...

The site of a fatal crash March 23, 2018, in which a Tesla SUV struck a damaged and nonfunctional crash attenuator on U.S. 101 in Mountain View. The National Transportation Safety Board said the ...