Track Maintenance and Engineering Instructions - Metrolink

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2.2.1 DEFINITIONS FOR CWRThe following terms are used in reference to CWR:A. Continuous Welded Rail (CWR): Rail that is welded into lengths inexcess of 400 feet.B. Neutral Rail Temperature (NRT): The temperature at which the rail hasno thermal stress due to expansion or contraction, this is the actual railtemperature if the rail is free to expand or contract as when the anchors areremoved and the rail is vibrated.C. Preferred Rail Laying Temperature (PRLT): The temperature that therail is to be installed at, or adjusted to, in order to balance the thermalexpansion and contraction forces for optimum track maintenancepractices.D. Pull-Apart: A track defect caused by excessive contraction of the railwhen cold, it may be the rupture of all bolts in a joint or a rail fracture thatpulls apart the rail.E. Rail Temperature: The actual temperature of the rail as measured by railthermometer(s).F. Track Buckle: A kink in the track caused by excessive thermalexpansion of the rail, insufficient lateral strength, or both -- often called a“sun kink”G. Destressing: A maintenance procedure that makes the longitudinalthermal stress in the rail the same as, or as close as possible to what itwould be, if the rail was laid and anchored at the PRLT -- sometimescalled “adjusting” CWR.2.2.2 MAINTENANCE OF CWRA. Proper maintenance of CWR will result in a high ride quality and extendedrail service life.B. It is a requirement of the FRA (49CFR 213.119) that each railroad managethe maintenance of CWR to maintain thermal forces within safe limits.This Section 2, Rail, and Section 8, Prevention of Track Buckling, are apart of the SCRRA program to maintain CWR.C. Employees responsible for the maintenance, inspection and installation ofCWR must receive annual training in CWR practices.SCRRA ENGINEERING INSTRUCTIONS 40 of 160 Revision Issue: 2-12-09
D. For the proper maintenance of CWR, the neutral rail temperature, ballastsection, drainage, cross ties, anchors, and rail head wear/profile must bemaintained to the highest quality.E. Newly installed CWR rail shall be ground as soon as possible (during thenext scheduled rail grinding program) after laying to correct any surfaceirregularities in the railhead. If irregularities are excessive, correctivemeasures other than grinding may be necessary.2.2.2.1 RESPONSIBILITIES OF MANAGER, TRACK AND STRUCTURES/CONSTRUCTION PROJECT MANAGER 4 FOR THEINSTALLATION OF CWRA. The Project Manager must be qualified per CFR 49 part 213.7; isresponsible for the overall safe passage of trains’ and must inspect trackfrequently behind CWR gang to ensure safe operating practices, properrail temperature adjustment, and appropriate temporary speed restrictions.B. The Project Manager is responsible for the quality of field welding, railpickup, and OTM pickup behind the CWR gang.C. The Project Manager is responsible for the reporting and documentation ofrail installation temperatures.D. The Project Manager shall verify that the following requirements are metin regard to CWR installation:1. The roadbed shall be properly prepared prior to distributingmaterial. This includes:a. Installing ties if required.b. Surfacing.c. Verifying that ballast is properly regulated and broomed.2. Turnouts shall be evaluated prior to installation to verify that:a. Those not required are removed.b. Those to be replaced are completed.c. Those to be relocated are completed.4The Manager of Maintenance of Way or Construction Project Manager may function asthe Project Manager or may delegate these functions to another authorized person. Ineither case a definite understanding of who will function as Project Manager will beprovided by the Manager of Maintenance of Way or the Construction Project Manager.SCRRA ENGINEERING INSTRUCTIONS 41 of 160 Revision Issue: 2-12-09
Page 1: SOUTHERN CALIFORNIA REGIONAL RAIL A
Page 5 and 6: 2.1.7 COMPROMISE JOINTS AND COMPROM
Page 7 and 8: 3.2.3 OPERATION OF RAIL GRINDERS ..
Page 9 and 10: 6.3.2 RAIL SURFACE CONDITIONS......
Page 11 and 12: SECTION 9 TRACK GEOMETRY ..........
Page 13 and 14: 11.9 HIGH WATER MARKS .............
Page 15 and 16: 17.4 EARTHQUAKE INSPECTION.........
Page 17 and 18: SECTION 1GENERAL INSTRUCTIONS1.1 SA
Page 19 and 20: 1.2.2 HEALTHJob-related health conc
Page 21 and 22: 1.3.2 LOADING OF MATERIALS AND TOOL
Page 23 and 24: 1.5.3 OPERATION OF GRINDERS AND ABR
Page 25 and 26: K. Tighten all hose connection. Not
Page 27 and 28: 1.8 UPDATING TIMETABLE AND RULEBOOK
Page 29 and 30: 1.9.4 HIGHWAY VEHICLES AND USE OF E
Page 31 and 32: eporting. However employees with ac
Page 33 and 34: that continue to create ride-qualit
Page 35 and 36: 2.1.4 RAIL LENGTHSbetween the ends
Page 37 and 38: FIGURE 2-1 - RAIL WEAR LIMITSRAILWE
Page 39: B. Do not drive anchors along the r
Page 43 and 44: 2.2.2.2 RAIL GANG LEADER (“FOREMA
Page 45 and 46: B. If surfacing work has been perfo
Page 47 and 48: D. Preferred Rail Laying Temperatur
Page 49 and 50: 2.2.5 MAINTAINING CWR TRACKA. It is
Page 51 and 52: train and after the track has been
Page 53 and 54: FIGURE 2-3 - SCRRA CWR STRESS ADJUS
Page 55 and 56: FIGURE 2-4 - CWR JOINT INVENTORY LI
Page 57 and 58: C. Field Weld: Once after completio
Page 59 and 60: B. Removal and replacement of a sec
Page 61 and 62: B. Welding: Manganese turnout frogs
Page 63 and 64: onded insulated joints; this destro
Page 65 and 66: simultaneously controlling the gage
Page 67 and 68: 3.1.12 LOCATION AND PREPARATION FOR
Page 69 and 70: 4. Handle molds and base bricks wit
Page 71 and 72: 3.2.2 VISUAL INSPECTION FOR RAIL GR
Page 73 and 74: SECTION 4TURNOUTS, DERAILS, AND RAI
Page 75 and 76: E. Inspect and make adjustments to
Page 77 and 78: FIGURE 4-1 - QUARTERLY TURNOUT AND
Page 79 and 80: 4. Length of Stock Rail5. Engineeri
Page 81 and 82: 2. Where past experience has shown
Page 83 and 84: B. A trial assembly of the crossing
Page 85 and 86: 4.3.5 BOLTSA. Install new crossing
Page 87 and 88: SECTION 5SIGNAL FACILITIES AND INSU
Page 89 and 90: 5.8.4 INSTALLATIONA. Rail Gap: When
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DATEMANAGER, TRACK AND STRUCTURES M
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C. A depressed head and/or widening
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SECTION 7CROSS TIES AND SWITCH TIES
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7.4.2 GANG LEADER (“FOREMAN’S
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estriction and restoring speeds to
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C. Ballast regulator plows shall be
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E. The following defects shall be c
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SECTION 8PREVENTION OF TRACK BUCKLI
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who will issue them to all trains t
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pattern is not adequate to prevent
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out approximately 4 inches of the h
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SECTION 9TRACK GEOMETRY9.1 SURFACE9
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G. Before the track that has been w
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B. Out-of-Face Surfacing:1. If the
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G. The speed of freight trains is e
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9.4 ALIGNMENTThe standard length of
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9.7 TRACK GEOMETRY CAR9.7.1 PLANNIN
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other contractor personnel as such
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annual bridge, culvert, and structu
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11.4 IMPORTANCE OF GOOD DRAINAGEAde
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12.2.1 APPLICATIONBallast specifica
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pieces of any class of rock slope p
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13.4 METHOD OF CONSTRUCTIONA. Const
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SECTION 14MAINTENANCE-OF-WAY CARS14
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14.5 FLAT CARS - HANDLING TRACK PAN
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SECTION 16VEGETATION, GRAFFITI, AND
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16.3 GRAFFITIA. Painting over graff
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SECTION 17EARTHQUAKE RESPONSE17.1 G
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When an earthquake is reported, the
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indications are presence that will
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shall confirm that none of these co
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E. A list of key inspection locatio
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B. Low Track 10: Track less than 10
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provide reports on actual wave deve
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4. SCRRA Sheriff and Claims, if app
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SOUTHERN CALIFORNIA REGIONAL RAIL A
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Continuous Welded Rail (CWR): Rail
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Joint - Insulated: A rail joint des
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Standard Gage: See Gage 4’-81/2
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Yard: A system of tracks within def
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CWR INSTALLATIONSURFACINGRAIL DEFEC
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SCRRA ENGINEERING INSTRUCTIONS 2 of
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SOUTHERN CALIFORNIA REGIONAL RAIL A
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APPENDIX E - E.S. 2302 - 03 - TABLE
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