Attachment 4
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Attachment 4 National Railroad Passenger Corporation LIMITS AND SPECIFICATIONS FOR TRACK SAFETY, MAINTENANCE AND CONSTRUCTION MW 1000 Office of the Deputy Chief Engineer-Track 30th Street Station Philadelphia, PA 19104 Effective December 11, 1976 Revision 1, December 1, 1985 Revision 2, January 1, 1992 Revision 3, September 21, 1998 Revision 4, March 1, 2013 3/1/2013 MW 1000 Safety, Maintenance and Construction Office of The Deputy Chief Engineer-Track 30th Street Station Philadelphia, PA 19104 Revision 4, March 1, 2013 Deputy Chief Engineer–Track 3/1/2013 Mission Statement It is the policy of the Amtrak Engineering Department to inspect and maintain the safest railroad in the world. The MW 1000 is a key document in realizing that goal. The MW 1000 details Amtrak's requirements for inspection, maintenance and construction. It is expected that Engineering Department personnel shall receive the classroom and on-the-job training to utilize the MW 1000 to the fullest extent. Understanding the requirements and technical issues contained in the MW 1000 will enable the Track Inspector and Track Foreman to inspect and maintain the world's safest railway. Commitment to safety while making inspections or repairs is absolutely essential if Amtrak is to have a world class railway. Quality inspection is key to ensuring that the condition of the property is accurately reported so that repairs or replacements of track structure may be programmed in a systematic and orderly fashion. The MW 1000 is an interactive document. It's development involved many man-hours and input of many individuals. It is expected that every individual in the Engineering Department that has reason to use this document will constantly strive to offer suggestions and constructive criticism to improve the overall understanding, user friendliness and quality of the MW 1000. 3/1/2013 3/1/2013 The MW 1000 General The MW 1000 is written for use by Amtrak maintenance-of- way forces in the inspection, maintenance and construction of track. The MW 1000 has three parts: Part I Limits and Specifications for Track Safety, Maintenance and Construction Part II Limits and Specifications for Turnout (and Other Trackwork) Safety, Maintenance and Construction (This Part also includes slips, crossing diamonds, and other special trackwork. Part III Limits and Specifications for Miter Rail and Expansion Joint Safety, Maintenance and Construction Limits in the turnout and miter rail parts are unique and in some cases more restrictive, thus superseding the track limits given in Part I. As an example, the gage safety limits for miter rails given in Part III are more restrictive then the gage safety limits for track found in Part I. Safety limits are limits, once passed, that would require the immediate repair of track, slow orders, or removal from service. It is Amtrak's policy to have track that never reaches these limits. Maintenance is replacing a component of the track structure such as laying new or fit rail or installing ties. Maintenance limits are to be used as a triggering mechanism that prompt maintenance or reconstruction. It is Amtrak's policy to have a track structure that stays between construction and maintenance limits. As the track structure breaks down, maintenance should be programmed before the track reaches the maintenance limits. Maintenance must be executed whenever the maintenance limits are exceeded and completed prior to reaching the safety limits. Whenever possible, track should be repaired or reconstructed to construction limits. Construction is the complete replacement of track structure from subgrade to top of rail. It should always be the goal to complete construction projects to a zero tolerance from the plans and specifications. This is not always practical given such variables as rail rolling tolerances and manufacturing limitations. Therefore, construction tolerances have been developed. 3/1/2013 Paragraph Number and Lettering The MW 1000 is composed of three Parts: Track, Turnouts and Miter Rails and Expansion Joints. Each Part contains a "Safety," "Maintenance" and "Construction" subpart. These subparts are further broken down into paragraphs (§) as is the Code of Federal Regulations, 49 CFR Part 213. Wherever possible, the paragraph numbers for similar topics of interest remain the same throughout this document. The use of the paragraph acronyms and their location in the MW 1000 is summarized below. Part Title Acronym Subpart of the MW 1000 I Track None Safety Limits I Track M Maintenance Limits I Track C Construction Limits II Turnouts TO Safety Limits II Turnouts TOM Maintenance Limits II Turnouts TOC Construction Limits III Miter Rails and MR Safety Limits Expansion Joints III Miter Rails and MRM Maintenance Limits Expansion Joints III Miter Rails and MRC Construction Limits Expansion Joints Using the example of gage, the following table lists the location of gage references in the MW 1000: Part Title Paragraph Paragraph Comments Number Name I Track §213.53 Gage Safety Limits I Track §53.0(M) Gage Maintenance Limits I Track §53.0(C) Gage Construction Limits II Turnouts §213.53(TO) Gage Safety Limits II Turnouts §53.0(TOM) Gage Maintenance Limits II Turnouts §53.0(TOC) Gage Construction Limits III Miter Rails §213.53(MR) Gage Safety and Limits Expansion Joints III Miter Rails §53.0(MRM) Gage Maintenance and Limits Expansion Joints III Miter Rails §53.0(MRC) Gage Construction and Limits Expansion Joints As shown above, an acronym is used after the paragraph number to designate the location of the paragraph within the MW 1000. 3/1/2013 The acronyms "TO" or "MR" indicate that the paragraph is found in the Turnout or Miter Rail and Expansion Joint Parts, respectively. The acronyms "M" or "C" indicate that the paragraph is maintenance or construction related. Cross Referencing of Paragraphs to Applicable 49 CFR Part 213 Numbers The MW 1000, Part I, Track, now includes a Subpart G for Track Classes 6-9. This subpart has been added in response to revisions made to 49 CFR Part 213. Paragraphs in Subpart G of the MW 1000 keep established paragraph nomenclature used in Subpart A-F (Track Classes 1-5) and make reference to the appropriate numbers used in Subpart G in the CFR. Paragraphs in Subpart G have a "0" (zero) added to the paragraph number to indicate that the user is now in the Track Class 6-9 Safety Limits section. The MW 1000 paragraph number is followed by the correct CFR paragraph number in parentheses. Examples given below illustrate paragraph numbering and cross referencing: Part Title Subject Paragraph Comments I Track Safety Gage §213.053 Track Class Limits (FRA 6-9 §213.323) I Track Safety Alignment §213.055 Track Class Limits (FRA 6-9 §213.327) I Track Safety Track §213.063 Track Class Limits Surface (FRA 6-9 §213.331) Similar types of cross-referencing exist in the Safety Limit subpart of Part II, Limits and Specifications for Turnout (and Other Trackwork). 3/1/2013 3/1/2013 MW 1000 Table of Contents Limits and Specifications for Track Safety, Maintenance and Construction .................................................................. I Limits and Specifications for Turnout (and Other Trackwork) Safety, Maintenance and Construction .......II Limits and Specifications for Miter Rail and Expansion Joint Safety, Maintenance and Construction..................III Glossary of Railroad Terms..............................Appendix A Underbalance Table – Maximum Allowable Operating Speed on Curves ............................. Appendix B Braking Distance Table.....................................Appendix C Track Buckling Countermeasures ...................Appendix D Weights and Measures ...................................... Appendix E Master Index 3/1/2013 3/1/2013 National Railroad Passenger Corporation PART I LIMITS AND SPECIFICATIONS FOR TRACK SAFETY, MAINTENANCE AND CONSTRUCTION MW 1000 3/1/2013 This Page Intentionally Left Blank 3/1/2013 SUBPARTS A-G LIMITS AND SPECIFICATIONS FOR TRACK SAFETY 3/1/2013 This Page Intentionally Left Blank 3/1/2013 LIMITS AND SPECIFICATIONS FOR TRACK SAFETY SUBPARTS A-F Track Classes 1-5 Subpart A — General........................................................ I-1 §213.1 Scope of Subpart ..............................................I-1 §213.2 Preemptive Effect.............................................I-1 §213.3 Application .......................................................I-1 §213.4 Excepted Track.................................................I-1 §213.5 Responsibility for Compliance.........................I-2 §213.6 Protection..........................................................I-2 §213.7 Designation of Qualified Persons to Supervise Certain Renewals and Inspect Track................I-4 §213.9 Classes of Track: Operating Speed Limits......I-5 §213.11 Restoration or Renewal of Track Under Traffic Conditions ............................................I-5 §213.13 Measuring Track Not Under Load ...................I-6 §213.15 Penalties............................................................I-6 §213.17 Waivers.............................................................I-6 §213.18 Quality Control.................................................I-6 §213.20 Track Inspection Measurements ......................I-7 §213.21 Class-Specific Defects .....................................I-7 §213.22 Non-Class-Specific Defects .............................I-7 Subpart B — Roadbed .................................................... I-10 §213.31 Scope of Subpart ............................................I-10