Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 6 of 6 for “"Track Inspection"”.
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Computer vision for railroad track inspection
In railroad track inspection, the inspection images contain periodically occurring components. Computer vision has recently been applied to several railroad applications due to its potential to improve the efficiency, objectivity, and accuracy when analyzing large databases of acquired video and …
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Scheduling of track inspection and maintenance activities in railroad networks
… spend billions of dollars every year on railroad track maintenance in order to ensure safety and operational efficiency of their railroad networks. Besides maintenance costs, other costs such as train accident costs, train and shipment delay costs and rolling stock maintenance costs are also …
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Multi-objective combinatorial optimization problems in transportation and defense systems
… in system of systems architecting and railroad track inspection scheduling. In particular, multi-objective system of systems architecting problems with system flexibility and performance improvement funds have been investigated. Efficient solution methods are proposed and evaluated for not only …
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Development of machine-vision technology for inspection of railroad track
… Administration (FRA) regulations require track to be inspected for physical defects at specified intervals, which may be as often as thrice per week. These inspections are conducted visually by railroad track inspectors, but due to practical considerations, only a certain level of detail …
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Deep Learning Methods for Built Environment Operational Management
… using a real-world case study of railroad track monitoring. By leveraging repeated inspection data, employing standalone discriminator models trained solely on normal time series samples, and using kernel density estimation for probabilistic AD, DEGAN achieved a balanced F1 score of 0.83 (R …
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Development of the track structural capacity rating (TSCR) and example use case for low volume railroad track
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2026-12-01