VIDEO - Crashing Into the Rear of a Commercial Trailer
I've always wondered how well the underride protection at the back of heavy commercial trailers would work, but I was never called on to investigate a collision like this. The Insurance Institute for Highway Safety (IIHS) has produced a video that shows these underride prevention structures provide poor protection when built to US standards and only slightly better protection when built to Canadian standards.

Dixon Ormiston fell from his bicycle and sustained serious injury after being forced against a concrete abutment by a vehicle that veered into his path while he was passing it on the right side. Of interest in deciding the liability in this case is the examination of passing on the right, both by a vehicle driver and a cyclist.