Ballast Fouling Measurement Tool – Phase III

Oden, Charles P; Ho, Carlton L.; Rubin, Aaron J

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Ballast Fouling Measurement Tool – Phase III

2024-08-01
By Oden, Charles P ; Ho, Carlton L. ; Rubin, Aaron J

File Language:

English

Details

Creators:

Oden, Charles P ; Ho, Carlton L. ; Rubin, Aaron J
Corporate Creators:

Earth Science Systems, LLC
Corporate Contributors:

United States. Department of Transportation. Federal Railroad Administration. Office of Railroad Policy and Development ; United States. Department of Transportation. Federal Railroad Administration. Office of Research, Development and Technology
Subject/TRT Terms:
Publication/ Report Number:

DOT/FRA/ORD-24/27
Resource Type:

Tech Report
Geographical Coverage:

United States
Edition:

Technical Report, January 2018–April 2019
Contracting Officer:

Baillargeon, Jay
Corporate Publisher:

United States. Department of Transportation. Federal Railroad Administration
Abstract:

Researchers developed a second-generation RAdar Ballast Inspection Tool (RABIT) based on ground-penetrating radar (GPR) for use by track inspectors. This system is much lighter (26 lbs/11.8 kg) than its predecessor and is portable. It has a single bi-static antenna pair that straddles the tie, enabling the ballast properties under the tie to be measured. During a measurement, the RABIT rolls down the track and obtains average ballast properties over a span of 10 cribs, thereby reducing problems associated with local variability in ballast properties and tie geometry. Researchers collected measurements and ground truth data at 12 test track locations and 84 in-service track locations. The research team trained a neural network to map GPR waveforms to ballast fouling and moisture estimates. The correlation factor between the RABIT estimates and measured values determined from physical ballast samples was greater than 0.9.
Format:

PDF
Download URL:

https://rosap.ntl.bts.gov/view/dot/77159/dot_77159_DS1.pdf
File Type:

[PDF - 4.52 MB]
Collection(s):

Federal Railroad Administration
Main Document Checksum:

urn:sha-512:d97f5b54f2be746d80df0c8fa11e11675b36ead7add817f067da65cdf1311a33b59e404a4f0c33cd630536c81033d742a997c47c53ff7ce977f302a60a902642

Ballast Fouling Measurement Tool – Phase II

Researchers developed a second-generation RAdar Ballast Inspection Tool (RABIT) using ground-penetrating radar (GPR) for use by track inspectors. This ...

Oden, Charles P ;

Ho, Carlton L.
Ballast Fouling Measurement Tool: Phase 1

A prototype man-portable ballast inspection instrument was developed by Earth Science Systems, LLC (ESS) at their facility for use by track inspectors ...

Oden, Charles P ;

Ho, Carlton L.

File Language:

English

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