2021 Heavy Haul Session
Adverse High Rail Profiles
(Retired) Norfolk Southern
A rail’s profile, considered together with the orientation (cant) of the rail, track gage and wheel profiles, determines the location of wheel contact. This contact has conse¬quences for wheelset steering and the wheel/ rail forces that can develop. Ultimately, an adverse rail profile can affect rail stability.
How do we describe an adverse high rail profile? What are the risks associated with this profile? And how is an adverse profile created? This presentation will answer these three questions and will then go on to describe how one railroad - Norfolk Southern - developed a grind¬ing strategy that attempts to mitigate the consequences of adverse high rail profiles.