Measurement of Wheel/Rail Forces at the Washington Metropolitan Area Transit Authority. Volume II. Test Report

Ahlbeck, Donald R..; Harrison, Harold D.; Tuten, J. M.; Battelle Memorial Institute. Columbus Laboratories

doi:10.21949/1526671

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Measurement of Wheel/Rail Forces at the Washington Metropolitan Area Transit Authority. Volume II. Test Report

1980-07-01
By Ahlbeck, Donald R.. ; Harrison, Harold D. ; Tuten, J. M.

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English

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Creators:

Ahlbeck, Donald R.. ; Harrison, Harold D. ; Tuten, J. M.

Ahlbeck, Donald R.. ; Harrison, Harold D. ; Tuten, J. M. Less -
Corporate Creators:

Battelle Memorial Institute. Columbus Laboratories
Corporate Contributors:

John A. Volpe National Transportation Systems Center (U.S.) ; United States. Urban Mass Transportation Administration

John A. Volpe National Transportation Systems Center (U.S.) ; United States. Urban Mass Transportation Administration Less -
Subject/TRT Terms:

[+]

Car Wheels (Railroads) Durability Tests Flanges Gage (Rails) Rail (Railroads) Railroad Tracks Rail Transit Rapid Transit Cars Rolling Friction Train Track Dynamics Wear Wheels
Publication/ Report Number:

DOT-TSC-UMTA-80-25,II ; UMTA-MA-06-0025-80-7

DOT-TSC-UMTA-80-25,II ; UMTA-MA-06-0025-80-7 Less -
DOI:

https://doi.org/10.21949/1526671
Resource Type:

Tech Report
Geographical Coverage:

Washington (District of Columbia)
Corporate Publisher:

United States. Urban Mass Transportation Administration
Abstract:

Measurements of wheel/rail forces were made in August 1979 by the Transportation Systems Center (TSC) with the assistance of Battelle Columbus Laboratories to determine the causes of excessive wheel/rail wear experiences by the Washington Metropolitan Area Transit Authority (WMATA) Metrorail System during its first three years of operation. In addition to measuring the absolute magnitude of the wheel/rail forces, it was the intent to compare alternative methods for relieving wheel/rail wear at WMATA and other transit properties. Measurements of the wheel/rail forces were made at the Washington National Airport Test Site and the Brentwood Shop Test Site. This report describes the results of that effort. The study found that for tight gage, the average flange force between the leading outer wheel and the high rail of an 800-foot radius curve was 9400 pounds, unworn cylindrical profile; 6300 pounds, unworn tapered profile; and 7900 pounds, worn cylindrical profile. For widened gage, the average flange force was 6300 pounds, unworn cylindrical profile and 5500 pounds, unworn tapered profile. On the basis of these results, it was recommended that cylindrical wheels be replaced by tapered wheels and tight gage curves be widened to standard gage.
Format:

PDF
Funding:

DOT-TSC-1595
Collection(s):

Volpe Center
Main Document Checksum:

[+]

urn:sha256:37b6b12c81861dd949e32ab5e3a4689df8755172f82b343dddbf4af850e6b182
Download URL:

https://rosap.ntl.bts.gov/view/dot/10224/dot_10224_DS1.pdf
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Measurement of Wheel/Rail Forces at the Washington Metropolitan Area Transit Authority. Volume II. Test Report

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