You've probably noticed those giant flaps mounted on the backs of many semi-trailers you see on the highway. Here's what they ...

That quilted pattern spotted on the rear doors of some semi-truck trailers may look good, but it also has a larger purpose. Here's the explanation.

Semi-trucks may soon be rolling down America’s highways without the big rear-view mirrors that stick out from the sides of the cab like jug-handle ears. The federal agency that oversees ...

Semi trucks are already massive machines as is, with the average US semi reaching 72 feet and weighing upwards of 25,000 pounds unloaded. They're so big, in fact, that they're even legally ...

For one thing, a semi truck's rear is usually obscured, so a dashboard rearview mirror wouldn't do anything. Regular side view mirrors, meanwhile, are too small to properly reflect the truck's ...