Urbana Campus Research Calendar (OVCRI)

Abstract:
North American freight train length has increased over the past 20 years to take advantage of the economies of scale they offer. In addition to these economic benefits, it is important to understand the safety of longer-train operations. Previous theoretical work suggested that operation of fewer, longer trains might improve safety. However, due to the lack of detailed, fine-grained data on train operation by train length, past studies faced challenges developing suitable exposure data needed to investigate the possible relationship between train length and derailment rate.
This presentation will discuss recent research using newly developed empirical data to investigate derailment rates and causes by train length and type. Analyses of the causes associated with these derailments, including train-handling, mechanical, and other causes will also be presented. Statistical models have also been developed to quantitatively evaluate the association between train length and derailment rate. In addition, the relationship between use of distributed power and derailment rate in longer trains of different types is being analyzed to understand its potential effect. The results of this analysis will inform the rail industry about longer-train operations and provide insights into how to maintain their safety while achieving their economic benefits.