by Jeff Tuzik Vehicle stability is of paramount concern in the rail transit environment. It affects safety, ride quality, and wear and damage on the track, wheels, trucks, and suspension. In turn, stability is largely defined by the interplay of track characteristics, wheel and rail profiles, and truck and suspension …
by Jeff Tuzik Understanding and improving wheel/rail interaction requires unwavering attention to the little details that can have a big effect. It’s what we do here at Interface Journal and what we talk about at the annual Wheel/Rail Interaction conferences that we participate in. But every now and then, it’s …
by Jeff Tuzik The L/V ratio is a ubiquitous measurement in the world of wheel/rail interaction. It is typically combined with the Nadal limit, functioning as shorthand for wheel climb derailment risk for a given set of conditions. But the L/V ratio and the various formulae used to set risk …