Most of today's commercial trucks rely on air brake systems, which are friction-based and include service brakes, parking brakes, a control pedal and an air storage tank, to slow and stop their trucks. While many within the trucking industry consider these systems...

Without traffic lights, there would be nothing to regulate traffic flow in busy areas, and crashes, injuries and fatalities would increase as a result. Unfortunately, even when traffic signals do exist, a high number of individuals ignore them, and this is why deaths...