This just happened today in Houston on I-45 North bound. It's amazing how everything is fine and safe and in a moment - life and limb is on the line..
Here's what I saw. 4 vehicles, 2 SUVs in front and followed by 2 tractors traveling on the same lane.
1. First SUV had the brake or emergency light flasher on. Stopped dead in 55-65 MPH lane, for whatever reasons.
2. Second SUV, trailing right behind, applied the brake and swerved to the left, kept hauling and avoided the collision.
3. Third vehicle, the tractor, locked the brakes and swerved slightly to the right and was barely able to avoid rear ending the first SUV.
4. Fourth vehicle, the last tractor, tried to apply the brakes but.............?!?
From the video there is no evidence that the the third vehicle, the tractor trailer pulling the step deck with beaver tails locked the brakes. At least not intentionally. The moron, fourth vehicle, last tractor, pulling the RGN rear ended number 3. That not only forced that vehicle forward but also caused the trailer wheels to lock up due to momentarily riding up the rear of the trailer. From what I saw on the video the tractor pulling the empty RGN trailer reacted too late to the situation and rode up the assend of the step deck and lost it.3. Third vehicle, the tractor, locked the brakes and swerved slightly to the right and was barely able to avoid rear ending the first SUV.