Just like with all the vehicles these days, semi trucks are now more advanced than ever before. They are faster, more powerful more comfortable and more capable than ever. Amongst these improvements these giants stop better than ever as well. Equipped with devices like an electric retarder, they are capable to maintain a safe speed down almost any hill without even touching the brakes. But again we have a video to show that none of these systems are perfect and sometimes the runaway ramp is the only thing that can stop them. Here is a video filmed near California Grapevine of a truck losing his brakes and has to use the runaway ramp and almost roles over.