Assessing the Effects of Operating Regimes on Track
RT&S, JULY 2023 ISSUE – Operating practices on North American railroads have changed within recent years. Precision Scheduled Railroading (PSR) and its variants, which have been adopted by most of the Class 1 railroads, have led to changes in train lengths and speeds. In some cases, railroads are running shorter and faster trains; in most cases, they’re running longer, heavier, and slower trains.