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Subpart
D - Track Structure |
This subpart prescribes minimum requirements
for ballast, crossties, track assembly fittings, and the physical conditions of
rails.
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Unless it is otherwise structurally supported,
all track shall be supported by material which will—
A) Transmit and distribute the load of the
track and railroad rolling equipment to the sub grade;
B) Restrain the track laterally,
longitudinally, and vertically under dynamic loads imposed by railroad rolling
equipment and thermal stress exerted by the rails;
C) Provide adequate drainage for the track;
and
D) Maintain proper track cross level, surface, and
alignment.
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A) Crossties shall be made of a material to
which can be securely fastened.
B) Each 39 foot segment of track shall
have-
1) A sufficient number of
crossties which in combination provide effective support that
will-
1)
Hold gage within the limits prescribed in 213.53(B);
11)
Maintain surface within the limits prescribed in 213.63; and
111)
Maintain alignment within the limits
prescribed in 213.55.
2) The minimum number and
type of crossties specified in paragraphs (C) and (D) of this section
effectively distributed to support the entire segment;
and
3) At least one crosstie of
the type specified in paragraphs (C) and (D) of this section that is located at
a joint location as specified in paragraph (F) of this
section.
C) Each 39 foot segment of: Class 1 track
shall have five crossties; Classes 2 and 3 track shall have eight crossties; and
Classes 4 and 5 track shall have 12 crossties, which are
not:
1) Broken
through;
2) Split or otherwise
impaired to the extent the crossties will allow the ballast to work through, or
will not hold spikes or rail fasteners;
3) So deteriorated
that the tie plate or base of rail can move laterally more than 1/2 inch
relative to the crossties; or
4) Cut by the tie plate
through more than 40 percent of a ties’ thickness.
D) Each 39 foot segment of track shall have
the minimum number and type of crossties as indicated in the following table
(this paragraph (D) is applicable September 21, 2000).
Class of
track |
Tangent track
and curves 2 degrees |
Turnouts and
curved track over 2 degrees |
Class 1 track
Class 2 track Class 3 track Class 4 and 5 track
|
5 8 8 12 |
6 9 10 14 |
E) Crossties counted to satisfy the
requirements set forth in the table in paragraph (D) of this section shall not
be—
1) Broken
through;
2) Split or
otherwise impaired to the extent the crossties will allow the ballast to work
through, or will not hold spikes or rail fasteners;
3) So
deteriorated that the tie plate or base of rail can move laterally 1/2 inch
relative to the crossties; or
4) Cut by the
tie plate through more than 40 percent of a crosstie’s thickness "(this
paragraph (E) is applicable September 21, 2000)."
F) Class 1 and Class 2 track
shall have one crosstie whose centerline is within 24 inches of each rail joint
location, and Classes 3 through 5 track shall have one crosstie whose centerline
is within 18 inches of each rail joint location or, two crossties whose
centerlines are within 24 inches either side of each rail joint location. The
relative position of these ties is described in the following diagrams:

Each rail joint in Classes 1 and 2
track shall be supported by at least one crosstie specified in paragraphs (c)
and (d) of this section whose centerline is within 48 inch; shown above.

Each rail joint in Classes 3 through 5
track shall be supported by either at least one crosstie specified in
paragraphs (c) and (d) of this section whose centerline is within 36
inch; shown above, or:
Two crossties, one on each
side of the rail joint, whose centerlines are within 24 inch; of the
rail joint location shown above.
G) For track constructed without crossties,
such as slab track, track connected directly to bridge structural components and
track over servicing pits, the track structure shall meet the requirements of
paragraphs (B)(1 )(1), (11), and
(111) of this section.
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- measurement
systems
A) A track owner may elect
to implement a Gage Restraint Measurement System (GRMS),
supplemented by the use of a Portable Track Loading Fixture (PTLF),
to determine compliance with the crosstie and fastener requirements
specified in 213.109 and 213.127 provided that—
1) The
track owner notifies the appropriate FRA Regional office at least 30
days prior to the designation of any line segment on which GRMS
technology will be implemented; and
2) The
track owner notifies the appropriate FRA Regional office at least 10
days prior to the removal of any line segment from GRMS designation.
B) Initial notification
under paragraph (a)(1) of this section shall include—
1)
Identification of the line segment(s) by timetable designation,
milepost limits, class of track, or other identifying criteria; and
2) The
most recent record of million gross tons of traffic per year over
the identified segment(s).
C) The track owner shall
also provide to FRA sufficient technical data to establish
compliance with the minimum design requirements of a GRMS vehicle
which specify that—
1) Gage
restraint shall be measured between the heads of rail—
A) At an
interval not exceeding 16 inches;
B) Under
an applied vertical load of no less than 10,000 pounds per rail; and
C) Under
an applied lateral load which provides for a lateral/vertical load
ratio between 0.5 and 1.25, and a load severity greater than 3,000
pounds but less than 8,000 pounds.
D) Load severity is defined
by the formula—S=L-cV
Where—
S=Load severity, defined as
the lateral load applied to the fastener system (pounds).
L=Actual lateral load
applied (pounds).
c=Coefficient of friction
between rail/tie which is assigned a nominal value of (0.4).
V=Actual vertical load
applied (pounds).
E) The measured gage values
shall be converted to a Projected Loaded Gage 24 (PLG 24) as
follows—

Where—
UTG=Unloaded track gage
measured by the GRMS vehicle at a point no less than 10 feet from
any lateral or vertical load application.
LTG=Loaded track gage
measured by the GRMS vehicle at a point no more than 12 inches from
the lateral load application point.
A=The extrapolation factor
used to convert the measured loaded gage to expected loaded gage
under a 24,000 pound lateral load and a 33,000 pound vertical load.
For all track—

Note: The A
factor shall not exceed (3.184) under any valid loading
configuration.
where—
L=Actual lateral load
applied (pounds).
V=Actual vertical load
applied (pounds).
F) The measured gage value
shall be converted to a Gage Widening Ratio (GWR) as follows—

G) The GRMS vehicle shall
be capable of producing output reports that provide a trace, on a
constant-distance scale, of all parameters specified in paragraph
(l) of this section.
H) The GRMS vehicle shall
be capable of providing an exception report containing a systematic
listing of all exceptions, by magnitude and location, to all the
parameters specified in paragraph (l) of this section.
I) The exception reports
required by this section shall be provided to the appropriate person
designated as fully qualified under 213.7
prior to the next inspection required under 213.233.
J) The track owner shall
institute the necessary procedures for maintaining the integrity of
the data collected by the GRMS and PTLF systems. At a minimum, the
track owner shall—
1)
Maintain and make available to the Federal Railroad Administration
documented calibration procedures on each GRMS vehicle which, at a
minimum, shall specify a daily instrument verification procedure
that will ensure correlation between measurements made on the ground
and those recorded by the instrumentation with respect to loaded and
unloaded gage parameters; and
2)
Maintain each PTLF used for determining compliance with the
requirements of this section such that the 4,000-pound reading is
accurate to within five percent of that reading.
K) The track owner shall
provide training in GRMS technology to all persons designated as
fully qualified under 213.7
and whose territories are subject to the requirements of this
section. The training program shall be made available to the Federal
Railroad Administration upon request. At a minimum, the training
program shall address—
1) Basic
GRMS procedures;
2)
Interpretation and handling of exception reports generated by the
GRMS vehicle;
3)
Locating and verifying defects in the field;
4)
Remedial action requirements;
5) Use
and calibration of the PTLF; and
6)
Recordkeeping requirements.
L) The GRMS record of
lateral restraint shall identify two exception levels. At a minimum,
the track owner shall initiate the required remedial action at each
exception level as defined in the following table—
- GRMS parameter
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If measurement value exceeds
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Remedial action required |
First Level Exception
| UTG................... |
58
Inches.............. |
- (1) Immediately protect the exception
location with a 10 mph speed restriction; then verify location
and
- (2) Restore lateral restraint and
maintain in compliance with PTLF criteria as described in
paragraph (m) of this section and
- (3) Maintain compliance with 213.53of
this part as measured with the PTLF
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- LTG.................
- PLG24............
- GWR..............
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- 58 inches
- 59 inches
- 1.0 inches
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Second Level Exception
- LTG...
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- 573/4 inches on Class 4 and 5 track.2
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- 2) Limit operating speed to no more
than the maximum allowable under 213.9
for Class 3 track; then verify location and
- (1)Maintain in compliance with PTLF
criteria as described in paragraph (m) of this section and
- (2)Maintain compliance with 213.53(b)
of this part measured with the
PTLF
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- PLG 24
- GWR
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- 58 inches
- 0.75 inches
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-
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1) Definitions for
the GRMS parameters referenced in this table are found in paragraph
(p) of this section.
2) This note
recognizes that typical good track will increase in total gage by as
much as \1/4\ inch due to outward rail rotation under GRMS loading
conditions. For Class 2 & 3 track, the GRMS LTG values are also
increased by \1/4\ inch to a maximum of 58 inches. However, for any
Class of track, GRMS LTG values in excess of 58 inches are
considered First Level exceptions and the appropriate remedial
actions must be taken by the track owner. This \1/4\-inch increase
in allowable gage applies only to GRMS LTG. For gage measured by
traditional methods, or with the use of the PTLF, the table in §
213.53(b) will apply.
M) Between GRMS
inspections, the PTLF may be used as an additional analytical tool
to assist fully qualified 213.7
individuals in determining compliance with the crosstie and fastener
requirements of 213.109
and 213.127.
When the PTLF is used, whether as an additional analytical tool or
to fulfill the requirements of paragraph (l), it shall be used
subject to the following criteria—
1) At
any location along the track that the PTLF is applied, that location
will be deemed in compliance with the crosstie and fastener
requirements specified in 213.109
and 213.127
provided that—
i) The
total gage widening at that location does not exceed
5/8
inch when increasing the applied force from 0 to 4,000 pounds; and
ii) The
gage of the track under 4,000 pounds of applied force does not
exceed the allowable gage prescribed in 213.53
(b) for the class of
track.
2) Gage
widening in excess of
5/8
inch shall constitute a deviation from Class 1 standards.
3) A
person designated as fully qualified under 213.7
retains the discretionary authority to prescribe additional remedial
actions for those locations which comply with the requirements of
paragraph (m)(1)(i) and (ii) of this section.
4) When
a functional PTLF is not available to a fully qualified person
designated under 213.7,
the criteria for determining crosstie and fastener compliance shall
be based solely on the requirements specified in 213.109
and 213.127.
5) If
the PTLF becomes non-functional or is missing, the track owner will
replace or repair it before the next inspection required under 213.233.
6) Where
vertical loading of the track is necessary for contact with the
lateral rail restraint components, a PTLF test will not be
considered valid until contact with these components is restored
under static loading conditions.
N) The track owner shall
maintain a record of the two most recent GRMS inspections at
locations which meet the requirements specified in 213.241(b).
At a minimum, records shall indicate the following—
1)
Location and nature of each First Level exception; and
2)
Nature and date of remedial action, if any, for each exception
identified in paragraph (n)(1) of this section.
O) The inspection interval
for designated GRMS line segments shall be such that—
1) On
line segments where the annual tonnage exceeds two million gross
tons, or where the maximum operating speeds for passenger trains
exceeds 30 mph, GRMS inspections must be performed annually at an
interval not to exceed 14 months; or
2) On
line segments where the annual tonnage is two million gross tons or
less and the maximum operating speed for passenger trains does not
exceed 30 mph, the interval between GRMS inspections must not exceed
24 months.
P) As used in this
section—
1) Gage
Restraint Measurement System (GRMS) means a track loading
vehicle meeting the minimum design requirements specified in this
section.
2) Gage
Widening Ratio (GWR) means the measured difference between
loaded and unloaded gage measurements, linearly normalized to 16,000
pounds of applied lateral load.
3) L/V
ratio means the numerical ratio of lateral load applied at a
point on the rail to the vertical load applied at that same point.
GRMS design requirements specify an L/V ratio of between 0.5 and
1.25. GRMS vehicles using load combinations developing L/V ratios
which exceed 0.8 must be operated with caution to protect against
the risk of wheel climb by the test wheelset.
4) Load
severity means the amount of lateral load applied to the
fastener system after friction between rail and tie is overcome by
any applied gage-widening lateral load.
5) Loaded
Track Gage (LTG) means the gage measured by the GRMS vehicle at
a point no more than 12 inches from the lateral load application
point.
6) Portable
Track Loading Fixture (PTLF) means a portable track loading
device capable of applying an increasing lateral force from 0 to
4,000 pounds on the web/base fillet of each rail simultaneously.
7) Projected
Loaded Gage (PLG) means an extrapolated value for loaded gage
calculated from actual measured loads and deflections. PLG 24 means
the extrapolated value for loaded gage under a 24,000 pound lateral
load and a 33,000 pound vertical load.
8) Unloaded
Track Gage (UTG) means the gage measured by the GRMS vehicle at
a point no less than 10 feet from any lateral or vertical load.
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A) When an owner of track to
which this part applies learns, through inspection or otherwise, that a rail in
that track contains any of the defects listed in the following table, a person
designated under 213.7 shall determine whether or not the track may continue in
use. If he determines that the track may continue in use, operation over the
defective rail is not permitted until—
(1) The rail is replaced;
or
(2) The remedial action
prescribed in the table is initiated.
Notes
- A. Assign person designated under
213.7 to visually supervise each operation over defective rail.
- A2. Assign person
designated under 213.7 to make a visual inspection. After a visual
inspection, that person may authorize operation to continue without
continuous visual supervision at a maximum of 10 mph for up to 24
hours prior to another such visual inspection or replacement or
repair of the rail.
- B. Limit operating speed over
defective rail to that as authorized by a person designated under
213.7(a), who has at least one year of supervisory experience in
railroad track maintenance. The operating speed cannot be over 30
mph or the maximum allowable speed under 213.9 for the class of
track concerned, whichever is lower.
- C. Apply joint bars bolted only through the
outermost holes to defect within 20 days after it is determined to
continue the track in use. In the case of Classes 3 through 5 track,
limit operating speed over defective rail to 30 mph until
joint bars are applied; thereafter, limit speed to 50 mph or the
maximum allowable speed under 213.9 for the class of track
concerned, whichever is lower. When a search for internal rail
defects is conducted under 213.237, and defects are discovered in
Classes 3 through 5 which require remedial action C, the operating
speed shall be limited to 50 mph, or the maximum allowable speed
under 213.9 for the class of track concerned, whichever is
lower, for a period not to exceed 4 days. If the defective has not
been removed from the track or a permanent repair made within 4 days
of the discovery, limit operating speed over the defective rail to
30 mph until joint bars are applied; thereafter, limit to 50 mph or
the maximum allowable speed under 213.9 for the class of track
concerned, whichever is lower.
- D. Apply joint bars bolted only
through the outermost holes to defect within 10 days after it is
determined to continue the track in use. In the case of Classes 3 through 5 track, limit operating speed over the defective
rail to 30 mph or less as authorized by a person designated under
213.7(a), who has at least one year of supervisory experience in
railroad track maintenance, until joint bars are applied;
thereafter, limit speed to 50 mph or the maximum allowable speed
under 213.9 for the class of track concerned, whichever is lower.
- E. Apply joint bars to defect
and bolt in accordance with 213.121 (d) and (e).
- F. Inspect rail 90 days after it
is determined to continue the track in use.
- G. Inspect rail 30 days after it
is determined to continue the track in use.
- H. Limit operating speed over
defective rail to 50 mph or the maximum allowable speed under 213.9
for the class of track concerned, whichever is lower.
- I. Limit operating speed over
defective rail to 30 mph or the maximum allowable speed under 213.9
for the class of track concerned, whichever is lower.
B) As used in this
section-
1) Transverse
fissure means a progressive
crosswise fracture starting from a crystalline center or nucleus inside the head
from which it spreads outward as a smooth, bright, or dark, round or oval
surface substantially at a right angle to the length of the rail. The
distinguishing features of a transverse fissure from other types of fractures or
defects are the crystalline center or nucleus and the nearly smooth surface of
the development which surrounds it.
2) Compound
fissure means a progressive
fracture originating in a horizontal split head which turns up or down in the
head of the rail as a smooth, bright, or dark surface progressing until
substantially at a right angle to the length of the rail. Compound fissures
require examination of both faces of the fracture to locate the horizontal split
head from which they originate.
3) Horizontal split head means
a horizontal progressive defect
originating inside of the rail head, usually one-quarter inch or more below the
running surface and progressing horizontally in all directions, and generally
accompanied by a flat spot on the running surface. The defect appears as a crack
lengthwise of the rail when it reaches the side of the rail
head.
4) Vertical split
head means a vertical split
through or near the middle of the head, and extending into or through it. A
crack or rust streak may show under the head close to the web or pieces may be
split off the side of the head.
5) Split
web means a lengthwise crack
along the side of the web and extending into or through
it.
6) Piped rail
means a vertical split in a rail, usually
in the web, due to failure of the shrinkage cavity in the ingot to unite in
rolling.
7) Broken base means any break in the base of the rail.
8) Detail
fracture means a progressive
fracture originating at or near the surface of the rail head. These fractures
should not be confused with transverse fissures, compound fissures, or other
defects which have internal origins. Detail fractures may arise from shelly
spots, head checks, or flaking.
9) Engine burn fracture means
a progressive fracture originating in spots
where driving wheels have slipped on top of the rail head. In developing
downward they frequently resemble the compound or even transverse fissures with
which they should not be confused or classified.
10) Ordinary break
means a partial or complete break in which
there is no sign of a fissure, and in which none of the other defects described
in this paragraph (B) are found.
11) Damaged
rail means any rail broken or
injured by wrecks, broken, flat, or unbalanced wheels, slipping, or similar
causes.
12) Flattened rail
means a short length of rail, not at a
joint, which has flattened out across the width of the rail head to a depth of
3/8 inch or more below the rest of the rail. Flattened rail occurrences have no
repetitive regularity and thus do not include corrugations, and have no apparent
localized cause such as a weld or engine burn. Their individual length is
relatively short, as compared to a condition such as head flow on the low rail
of curves.
13) Bolt hole
crack means a crack across the
web, originating from a bolt hole, and progressing on a path either inclined
upward toward the rail head or inclined downward toward the base. Fully
developed bolt hole cracks may continue horizontally along the head/web or base/
web fillet, or they may progress into and through the head or base to separate a
piece of the rail end from the rail. Multiple cracks occurring in one rail end
are considered to be a single defect. However, bolt hole cracks occurring in
adjacent rail ends within the same joint must be reported as separate
defects.
14) Defective
weld means a field or plant
weld containing any discontinuities or pockets, exceeding 5 percent of the rail
head area individually or 10 percent in the aggregate, oriented in or near the
transverse plane, due to incomplete penetration of the weld metal between the
rail ends, lack of fusion between weld and rail end metal, entrainment of slag
or sand, under-bead or other shrinkage cracking, or fatigue cracking. Weld
defects may originate in the rail head, web, or base, and in some cases, cracks
may progress from the defect into either or both adjoining rail
ends.
15) Head and web
separation means a progressive
fracture, longitudinally separating the head from the web of the rail at the
head fillet area
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Any mismatch of rails at joints may not be
more than that prescribed by the following table—
Class of
track |
Any mismatch of rails
at joints may not be more than the
following— |
x |
On the tread of the rail ends
(inch) |
On the gage side of the rail ends
(inch) |
Class 1 track
Class 2 track
Class 3 track
Class 4 and 5 track
|
¼
¼
3/16
1/8 |
¼
3/16
3/16
1/8 |
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- 213.119
Continuous welded rail (CWR); general.
Each track owner with track constructed of CWR
shall have in effect and comply with a plan that contains written procedures which address the
installation, adjustment, maintenance and inspection of CWR, inspection of
joints in CWR; and a training
program for the application of those procedures. The plan shall be submitted to the
Federal Railroad Administration by March 22, 1999 FRA reviews each plan for
compliance with the following—
A) Procedures for the
installation and adjustment of CWR which include-
1)
Designation of a desired rail installation temperature range for the geographic
area in which the CWR is located; and
2)
De-stressing procedures/methods which address proper attainment of the desired
rail installation temperature range when adjusting CWR.
B) Rail anchoring or fastening
requirements that will provide sufficient restraint to limit longitudinal rail
and crosstie movement to the extent practical, and specifically addressing CWR
rail anchoring or fastening patterns on bridges, bridge approaches, and at other
locations where possible longitudinal rail and crosstie movement associated with
normally expected train-induced forces, is restricted.
C) Procedures which specifically
address maintaining a desired rail installation temperature range when cutting
CWR including rail repairs, in-track welding, and in conjunction with
adjustments made in the area of tight track, a track buckle, or a pull-apart.
Rail repair practices shall take into consideration existing rail temperature so
that—
1) When rail is removed, the
length installed shall be determined by taking into consideration the existing
rail temperature and the desired rail installation temperature range;
and
2) Under no
circumstances should rail be added when the rail temperature is below that
designated by paragraph (A)(1) of this section, without provisions for later
adjustment.
(D) Procedures which address the
monitoring of CWR in curved track for inward shifts of alignment
toward the
center of the curve as a result of disturbed track.
(E) Procedures which control
train speed on CWR track when-
1)
Maintenance work, track rehabilitation, track construction, or any other event
occurs which disturbs the roadbed or ballast section and reduces the lateral or
longitudinal resistance of the track; and
2) In
formulating the procedures under this paragraph (e), the track owner
shall-
1) Determine the speed required, and the duration and subsequent removal of any
speed restriction based on the restoration of the ballast, along with sufficient
ballast re-consolidation to stabilize the track to a level that can accommodate
expected train-induced forces. Ballast re-consolidation can be achieved through
either the passage of train tonnage or mechanical stabilization procedures, or
both; and
11) Take into consideration the type of crossties used.
F) Procedures which prescribe
when physical track inspections are to be performed to detect buckling prone
conditions in CWR track. At a minimum, these procedures shall address inspecting
track to identify-
1) Locations
where tight or kinky rail conditions are likely to
occur;
2) Locations
where track work of the nature described in paragraph (E)(1) of this section
have recently been performed; and
3) In
formulating the procedures under this paragraph (F), the track owner
shall—
1) Specify the timing of the inspection; and
11) Specify the appropriate remedial actions to be taken when buckling prone
conditions are found.
G) procedures which prescribe
the scheduling and conduct of physical track inspections
to detect cracks and other indications of incipient failures in joints in CWR.
This paragraph is effective January 3, 2006
1) At a minimum, these
procedures shall address periodic and special on-foot inspection of
joints and of the track adjacent to joints, in order to identify--
1)
Joint bars with visible or otherwise detectable cracks;
11)
Loose, bent, missing joint bolts;
111)
Rail end batter or mismatch that
contributes to impact loads and instability of the joint; and
1V) Evidence
of excessive longitudinal rail movement in or near the joint, including,
but not limited to, wide rail gap, defective joint bolts, disturbed
ballast, surface deviations, gap between tie plates and rail, or
displaced rail anchors.
2) In formulating the
procedures under paragraph (G)(1) of this section, the track owner
shall--
1) Implement
a system for identifying each joint by its location in track with sufficient
precision that personnel can return to the joint and identify it with
out ambiguity;
11) List
each joint in an inventory that will enable personnel to identify joints
due for periodic inspection;
(iii) Specify the conditions of potential
joint failure for which personnel must inspect, including, at a minimum,
the items listed in paragraph (g)(1) of this section;
(iv) Specify the appropriate remedial
actions, consistent with this part, that should be taken when personnel
find conditions of potential joint failure; and
(v) Specify the timing of the inspections,
which should be based on the configuration and condition of the joint.
At a minimum, track owners must specify that all joints in CWR in track
classes 4 and higher must be inspected before October 31, 2006 and
within 190 days of the previous inspection hereafter; and all joints in
CWR in track classes 3, and class 2 track on which passenger trains
operate, must be inspected before April 30, 2007 and within 370 days of
the previous inspection thereafter.
(3) In lieu of the requirements for the
inspection of rail joints contained in paragraphs (g)(1) and (2) of this
section, a track owner may seek approval from FRA to use alternate
procedures.
(i) The track owner shall submit the
alternate procedures and a supporting statement of justification to the
Associate Administrator for Safety (Associate Administrator).
(ii) If the Associate Administrator finds
that the alternate procedures provide an equivalent or higher level of
safety than the requirements in paragraphs (g)(1) and (g)(2) of this
section, the Associate Administrator will approve the alternate
procedures by notifying the track owner in writing. The Associate
Administrator will specify in the written notification the date on which
the procedures will become effective, and after that date, the track
owner shall comply with the procedures. If the Associate Administrator
determines that the alternate procedures do not provide an equivalent
level of safety, the Associate Administrator will disapprove the
alternate procedures in writing, and the track owner shall continue to
comply with the requirements in paragraphs (g)(1) and (2) of this
section.
(iii) While a determination is pending with
the Associate Administrator on a request submitted pursuant to paragraph
(g)(3) of this section, the track owner shall continue to comply with
the requirements contained in paragraphs (g)(1) and (2) of this section.
H) The track owner shall have in
effect a comprehensive training program for the application of these written CWR
procedures, with provisions for periodic re-training, for those individuals
designated under 213.7 of this part as qualified to supervise the installation,
adjustment, and maintenance of CWR track and to perform inspections of CWR
track.
I) The track owner shall
prescribe recordkeeping requirements necessary to provide an adequate history of
track constructed with CWR. At a minimum, these records must
include:
(1) Rail
temperature, location and date of CWR installations. This record shall be
retained for at least one year; and
(2) A record
of any CWR installation or maintenance work that does not conform with the
written procedures. Such record shall include the location of the rail and be
maintained until the CWR is brought into conformance with such
procedures.
3) Information on inspection of rail
joints.
1) After the initial inspection of
each joint in accordance with paragraph (G) of this section, the track owner
must include in the record:
A) The location of each joint in CWR
with such precision that the joint can be located and identified in the field
with no ambiguity;
B) The results of the inspection of
each joint; and
C) Any remedial action required under
the track owner's CWR plan.
11) Track owners shall maintain
records required by paragraph (1)(3)(1) in accordance with 213.241.
J) As used in this
section—
1) Adjusting/de-stressing means the procedure by which a
rails' temperature is readjusted to the desired value. It typically consists of
cutting the rail and removing rail anchoring devices, which provides for the
necessary expansion and contraction, and then re-assembling the
track.
2) Buckling incident means the formation of a lateral misalignment
sufficient in magnitude to constitute a deviation from the Class 1
requirements specified in 213.55 of this part. These normally occur when rail
temperatures are relatively high and are caused by high longitudinal compressive
forces.
3) Continuous welded rail (CWR) means rail that has been
welded together into lengths exceeding 400 feet.
4) Desired rail installation temperature range means the
rail temperature range, within a specific geographical area, at which forces in
CWR should not cause a buckling incident in extreme heat, or a pull apart
during
extreme cold weather.
5) Disturbed track means the disturbance of the roadbed or
ballast section, as a result of track maintenance or any other event, which
reduces the lateral or longitudinal resistance of the track, or
both.
6) Mechanical stabilization means a type of procedure used
to restore track resistance to disturbed track following certain maintenance
operations. This procedure may incorporate dynamic track stabilizers or ballast
consolidators, which are units of work equipment that are used as a substitute
for the stabilization action provided by the passage of tonnage
trains.
7)
Rail anchors means those devices which are attached to the rail
and bear against the side of the crosstie to control longitudinal rail movement.
Certain types of rail fasteners also act as rail anchors and control
longitudinal rail movement by exerting a downward clamping force on the upper
surface of the rail base.
8)
Rail temperature means the temperature of the rail, measured
with a rail thermometer.
9)
Tight/kinky rail means CWR which exhibits minute alignment
irregularities which indicate that the rail is in a considerable amount of
compression.
10)
Train-induced forces means the vertical, longitudinal, and
lateral dynamic forces which are generated during train movement and which can
contribute to the buckling potential.
11)
Track lateral resistance means the resistance provided to the
rail/crosstie structure against lateral displacement.
12)
Track longitudinal resistance means the resistance provided by
the rail anchors/rail fasteners and the ballast section to the rail/crosstie
structure against longitudinal displacement.
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A) Each rail joint, insulated
joint, and compromise joint shall be of a structurally sound design and
dimensions for the rail on which it is applied.
B) If a joint bar on Classes 3
through 5 track is cracked, broken, or because of wear allows excessive vertical
movement of either rail when all bolts are tight, it shall be
replaced.
C) If a joint bar is
cracked or broken between the middle two bolt holes it shall be
replaced.
D) In
the case of conventional jointed track, each rail shall be bolted with at least
two bolts at each joint in Classes 2 through 5 track, and with at least
one bolt in Class 1 track.
E) In the case of
continuous welded rail track, each rail shall be bolted with at least two bolts
at each joint.
F) Each joint bar shall be
held in position by track bolts tightened to allow the joint bar to firmly
support the abutting rail ends and to allow longitudinal movement of the rail in
the joint to accommodate expansion and contraction due to temperature
variations. When no-slip, joint-to-rail contact exists by design, the
requirements of this paragraph do not apply. Those locations when over 400 feet
in length, are considered to be continuous welded rail track and shall meet all
the requirements for continuous welded rail track prescribed in this
part.
G) No rail shall have a bolt
hole which is torch cut or burned in Classes 2 through 5 track. (For Class 2
track, this paragraph (G) is applicable September 21,
1999.)
H) No joint bar shall be
reconfigured by torch cutting in Classes 3 through 5
track.
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A) Except as a temporary repair
in emergency situations no rail having a torch cut end shall be used in Classes
3 through 5 track. When a rail end is torch cut in emergency situations, train
speed over that rail end shall not exceed the maximum allowable for Class 2
track. For existing torch cut rail ends in Classes 3 through 5 track the
following shall apply—
1) Within one
year of September 21, 1998, all torch cut rail ends in Class 5 track shall be
removed;
2) Within two
years of September 21, 1998, all torch cut rail ends in Class 4 track shall be
removed; and
3) Within one
year of September 21, 1998, all torch cut rail ends in Class 3 track over which
regularly scheduled passenger trains operate, shall be inventoried by the track
owner.
B) Following the expiration of the time limits
specified in paragraphs (A)(1), (2), and (3) of this section, any torch cut rail
end not removed from Classes 4 and 5 track, or any torch cut rail end not
inventoried in Class 3 track over which regularly scheduled passenger trains
operate, shall be removed within 30 days of discovery. Train speed over that
rail end shall not exceed the maximum allowable for Class 2 track until
removed.
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A) In Classes 3 through 5 track
where timber crossties are in use there shall be tie plates under
the running rails on at least eight of any 10 consecutive
ties.
B) In Classes 3 through 5 track
no metal object which causes a concentrated load by solely supporting a rail
shall be allowed between the base of the rail and the bearing surface of the tie plate. (This paragraph (B) is applicable September 21,
1999.)
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Track shall be fastened by a
system of components which effectively maintains gage within the limits
prescribed in 213.53(B). Each component of each such system shall be
evaluated to determine whether gage is effectively being
maintained.
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- 213.133
Turnouts and track crossings
generally.
A) In turnouts and track
crossings, the fastenings shall be intact and maintained so as to keep the
components securely in place. Also, each switch, frog, and guard rail shall be
kept free of obstructions that may interfere with the passage of
wheels.
B) Classes 3 through 5
track shall be equipped with rail anchoring through and on each side of track
crossings and turnouts, to restrain rail movement affecting the position of
switch points and frogs. (For Class 3 track, this paragraph (B) is applicable
September 21, 1999.)
C) Each flange way
at
turnouts and track crossings shall be at least 1 1/2 inches
wide.
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A) Each stock rail must be
securely seated in switch plates, but care shall be used to avoid canting the
rail by over tightening the rail braces.
B) Each switch point shall
fit its stock rail properly, with the switch stand in either of its closed
positions to allow wheels to pass the switch point. Lateral and vertical
movement of a stock rail in the switch plates or of a switch plate on a tie
shall not adversely affect the fit of the switch point to the stock rail. Broken
or cracked switch point rails will be subject to the requirements of 213.113, except that where remedial actions C, D, or E require
the use of joint bars, and joint bars cannot be placed due to the physical
configuration of the switch, remedial action B will govern, taking into account
any added safety provided by the presence of reinforcing bars on the switch
points.
C) Each switch shall be
maintained so that the outer edge of the wheel tread cannot contact the gage
side of the stock rail.
D) The heel of each switch rail
shall be secure and the bolts in each heel shall be kept
tight.
E) Each switch stand and connecting rod shall
be securely fastened and operable without excessive lost motion.
F) Each throw lever shall be maintained so
that it cannot be operated with the lock or keeper in
place.
G) Each switch position indicator shall be
clearly visible at all times.
H) Unusually chipped or worn switch
points shall be repaired or replaced. Metal flow shall be removed to insure
proper closure.
I) Tongue & Plain Mate switches, which by
design exceed Class 1 and excepted track maximum gage limits, are permitted in
Class 1 and excepted track.
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A) The flange way
depth measured from a plane
across the wheel- bearing area of a frog on Class 1 track shall not be less than
1 3/8 inches, or less than 1 1/2 inches on Classes 2 through 5
track.
B) If a frog point is chipped,
broken, or worn more than 5/8 inch down and 6 inches back, operating speed over
the frog shall not be more than 10 m.p.h.
C) If the tread portion of a frog casting is
worn down more than 3/8 inch below the original contour, operating speed over
that frog shall not be more than 10 m.p.h.
D) Where frogs are designed as flange-bearing,
flange way depth may be less than that shown for Class 1 if operated at Class 1
speeds.
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A) The outer edge of a wheel tread shall not
contact the gage side of a spring wing rail.
B) The toe of each wing rail shall be solidly
tamped and fully and tightly bolted.
C) Each frog with a bolt hole defect or
head-web separation shall be replaced.
D) Each spring shall have compression
sufficient to hold the wing rail against the point rail.
E) The clearance between the hold down
housing
and the horn shall not be more than 1/4 of an inch.
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A) The raised guard on a self-guarded frog
shall not be worn more than 3/8 of an inch.
B) If repairs are made to a self-guarded
frog without removing it from service, the guarding face shall be restored
before rebuilding the point.
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- 213.143 Frog
guard rails and guard faces; gage.
The guard check and guard face gages in frogs
shall be within the limits prescribed in the following
table—


| Class of
track |
Guard
check gage
The distance between the gage line of a frog to the guard line
1
of its guard rail or guarding face,
measured across the track at right angles to gage line
2
may not be less than-
|
Guard face gage
The distance
between guard lines 1
measured across the track at right angles
to the gage line
2
may not be more than- |
|
Class 1 track |
4’6 1/8" |
4’5 ¼" |
|
Class 2 track
|
4’6 ¼" |
4’ 5 1/8"
|
|
Class 3 and 4 track |
4’6 3/8" |
4’ 5 1/8" |
|
Class 5 track
|
4’6 ½" |
4’
5" |
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Subpart C-Track Geometry Subpart E-Track Appliances and Track-Related
Devices
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