Samsung showed off its "Safety Truck," a customized truck that has a live-feed screen on the back of the truck that streams from a front-mounted camera. The truck is able to let drivers see a real-time view of all oncoming traffic, so you'll be able to determine if it's safe to pass the truck.
The front-mounted camera is cheap enough, but the four outdoor displays are rather pricey - and even with Samsung applying for regulatory approval, it's difficult to imagine this is an affordable effort any time soon. This is still an early prototype project, so additional testing will be required.
If rolled out on a wide scale, this would be especially ideal on single-lane highways - and Samsung has already tested out the truck in Argentina. Additional tests in other locations are currently in the works, though Samsung didn't offer additional details.