United States Department of Transportation
i
Categorizing Track Mud Spot Risk by Measurement of Vertical Track Deflection
-
2021-08-01
[PDF-2.59 MB]
Details:
-
Creators:
-
Corporate Creators:
-
Subject/TRT Terms:
-
Publication/ Report Number:
-
Resource Type:
-
Geographical Coverage:
-
Edition:Final Report
-
Contracting Officer:
-
Corporate Publisher:
-
Abstract:Mud spots are a common problem faced by railroads where water, through capillary action, is “pumped” from the subgrade into the ballast by ties that move downward and upward under passing axle loads. When mud is mixed in with the ballast, several problems can occur which can increase the risk of derailment due to increased vertical track deflection. Maintenance crews typically know the location of their mud spots, and in general, perform repetitive, expensive, track time consuming maintenance to fix the symptom and not the root cause of the problem. If the level of risk for each mud spot were quantified, maintenance could be prioritized, whereby high-risk mud spots are addressed first, while low risk mud spots are monitored in the event their situation worsens.
-
Format:
-
Funding:
-
Collection(s):
-
Main Document Checksum:
-
Download URL:
-
File Type:
