By Gary Wolf Part 1 of this article examined trailing-point derailments, facing-point derailments and thin flange wheels. Part 2 examines wheel climb and frog-related derailments. Crosslevel variances in turnout geometry represent a common cause of wheel-climb derailments. It’s not unusual to find bolted or insulated joints within 30 to 40 …
By Gary P. Wolf • November 1, 2004 Part 1 of Truck Warp: Causes and Cures covered the three primary causes of truck warp: Part 2 of this article explores these causes in more detail and, more importantly, what can be done to prevent trucks from warping. Lack of sufficient …
By Jeff Tuzik • July 2010 Wheel/rail interaction is complex, variable and difficult to manage — especially on rail transit systems where noise, vibration and ride quality present daily challenges. As a result, managing the wheel/rail interface requires constant attention and innovation. Speakers at Advanced Rail Management’s Rail Transit 2010 …
By Gary Wolf • January, 2007 The Association of American Railroads (AAR) has promulgated a new Rule 46 in the Field Manual of the AAR Interchange Rules. This new rule represents a comprehensive effort to codify under one umbrella many of the formerly fragmented rules dealing with truck wear limits, maintenance …