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RAILWAY TRACK GEOMETRY DEFECT MODELING FOR PREDICTING DETERIORATION, DERAILMENT RISK, AND OPTIMAL REPAIR

  • US 20140200830A1
  • Filed: 08/08/2013
  • Published: 07/17/2014
  • Est. Priority Date: 01/11/2013
  • Status: Active Grant
First Claim
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1. A method, comprising:

  • logically dividing a railroad network according to spatial and temporal dimensions with respect to historical data collected for the railroad network, the spatial dimensions including line segments of a specified length and the temporal dimensions including inspection run data for inspections performed for each of the line segments over a specified period of time;

    creating, via a computer processor, a track deterioration model from the historical data, current track conditions, and traffic data;

    identifying geo-defects occurring at each inspection run from the track deterioration model;

    calculating, via the computer processor, a track deterioration condition from the track deterioration model, the track deterioration condition calculated by analyzing quantified changes in the geo-defects measured at each inspection run;

    calculating a derailment risk based on track conditions determined from the inspection run data and from the track deterioration condition; and

    determining a repair decision for each of the geo-defects based on the derailment risk and historically determined costs associated with previous comparable repairs.

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