RAILWAY TRACK GEOMETRY DEFECT MODELING FOR PREDICTING DETERIORATION, DERAILMENT RISK, AND OPTIMAL REPAIR
First Claim
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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Accused Products
Abstract
Geo-defect repair modeling is provided. A method includes logically dividing a railroad network according to spatial and temporal dimensions with respect to historical data collected. The spatial dimensions include line segments of a specified length and the temporal dimensions include inspection run data for inspections performed for each of the line segments over a period of time. The method also includes creating a track deterioration model from the historical data, identifying geo-defects occurring at each inspection run from the track deterioration model, calculating a track deterioration condition from the track deterioration model by analyzing quantified changes in the geo-defects measured at each inspection run, and calculating a derailment risk based on track conditions determined from the inspection run data and the track deterioration condition. The method further includes determining a repair decision for each of the geo-defects based on the derailment risk and costs associated with previous comparable repairs.
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Citations
16 Claims
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1. A method, comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A computer program product comprising a computer-readable storage medium having program code embodied thereon, which when executed by a computer processor, causes the computer processor to implement a method, the method comprising:
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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 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 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. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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Specification