DRRY Index

Definitions of Terms Relating to Track Work

Definitions
Current Revision 09-01-2004

References:

  1. American Railway Engineering Association Portfolio of Track Drawings, circa 1940.
  2. Tenth edition of The Track Cyclopedia, 1985.
  3. Dictionary of Railway Track Terms, 2003.

Standard Dimensions, Tolerances and Data for Railway Wheels,
Wheel Mounting, Unguarded Track Gage and Track Gage and
Flangeways at Frogs and Crossings.

Figure A: Elevation view of cross section of guarded track and wheel set.
Current Revision 09-01-2004

Table No. 1: Track and Wheel Set Standard Dimensions, Maximum Limits, Minimum Limits and Minimum Clearance Allowed Between Associated Track and Wheel Set Limits.
Current Revision 09-01-2006

Figure B1: Normal flange contour for new wheels.
Current Revision 01-26-2006

Figure B2: Extended wear flange contour for new wheels.
Current Revision 01-26-2006

Image B3: View of multiple cutting tool set up for machining wheel tread and flange contour of new wheel.
Current Revision 03-01-2006

Figure C: Permissible tread contours for new wheels.
Current Revision 09-01-2004

Figure D: Plan view of guarded track at typical crossing.
Current Revision 09-01-2004

Figure E: Plan view of guarded track at typical turnout frog.
Current Revision 09-01-2004

Figures F and G: Elevation view of cross section of guarded track with cast turnout frog and wheel set applied.
Current Revision 09-01-2004

Figures H and I: Elevation view of cross section of guarded track with fabricated steel channel turnout frog and wheel set applied.
Current Revision 09-01-2004

Image J: Elevation view of cross section of worn wheel on worn aluminum rail.
Current Revision 02-09-2006

Image K: Elevation view of cross section of worn wheel on worn steel rail.
Current Revision 02-09-2006

References:

  1. American Railway Engineering Association Plan No. 793-40, circa 1940.
  2. Illinois Live Steamers 1 1/2 Inch Scale Standards, W. Gardner, Engineer, circa 1970.

Outline of Frog and Crossing Limit Gage.

Drawing DRTRK4-A
Current Revision 09-01-2004

References:

  1. American Railway Engineering Association Plan No. 790-34, circa 1940.

Standard Dimensions and Tolerances for Installation and Maintenance
of 18 Inch Steel Angle Guard Rails at Turnout Frogs.

Drawing DRTRK7
Current Revision 09-01-2004

References:

  1. American Railway Engineering Association Plan No. 502-40, circa 1940.
  2. Baltimore and Ohio Railroad Standard Plans for Maintenance of Way and Construction Drawing No. 4299, circa 1906 and Drawing No. 4722, circa 1907.
  3. The Pennsylvania Railroad Specifications for Standard Track Drawing No. 71800-C, circa 1928 and Drawing No. 71805-A, circa 1931.
  4. Illinois Live Steamers 1 1/2 Inch Scale Standards, W. Gardner, Engineer, circa 1970.

Standard Procedures for Design, Installation and Maintenance
of Circular Curves and Spiral Curves

Definitions
Current Revision: (Work in progress.)

Procedures, Formulas and Excel Spread Sheets
Current Revision: (Work in progress.)

References:

  1. American Railway Engineering Association, Engineering Division, Association of American Railroads, Manual of Recommended Practice, Complete to March 25, 1965, Part 3, Curves, Spirals, Pages 5-3-1 through 5-3-4.1 inclusive and pages 5-3-9 through 5-3-12 inclusive.
  2.  Spiral Curve Calculator, Excel Spreadsheet, Washington Council of County Surveyors, Internet URL wa-ccs.org, June 18,2008.
  3. Railroad, Curves and Earthwork, C. Frank Allen, S.B., 1931.
  4. Railroad Engineering, Volume One, William W. Hay, Mgt. E., M.S., 1953.
  5. Railroad Engineering, Second Edition, William W. Hay, Mgt. E., M.S., Ph.D., 1982.

Standard Notation for Spiral Curves.

Drawing DRTRK12, Figure A
Current Revision 06-23-2008

References:

  1. American Railway Engineering Association, Engineering Division, Association of American Railroads, Manual of Recommended Practice, Complete to March 25, 1965, Page 5-3-3,
Figure 1.

Clearance Diagram for Structures and Devices.

Drawing DRTRK28
Current Revision 05-15-2008

References:

  1. Norfolk and Western Railway Standard Clearances Plan L-231, 08-03-1929.

Clearance Diagram for Rolling Equipment.

Drawing DRTRK29
Current Revision 05-15-2008

References:

  1. Norfolk and Western Railway Standard Clearances Plan L-231, 08-03-1929.

DRRY Index