Appendix G to Part 238 - Alternative Requirements for Evaluating the Crashworthiness and Occupant Protection Performance of Tier I Passenger Trainsets
49:4.1.1.1.32.11.137.1.91 : Appendix G
Appendix G to Part 238 - Alternative Requirements for Evaluating
the Crashworthiness and Occupant Protection Performance of Tier I
Passenger Trainsets General
This appendix applies to Tier I alternative passenger trainsets,
as described below. While the appendix may refer to specific units
of rail equipment in a trainset, the alternative requirements in
this appendix apply only to a trainset as a whole.
This appendix specifies alternatives to the crashworthiness and
occupant protection performance requirements for Tier I passenger
equipment in §§ 238.203, Static end strength; 238.205,
Anti-climbing mechanism; 238.207, Link between coupling mechanism
and car body; 238.209(a), Forward end structure of locomotives,
including cab cars and MU locomotives; 238.211, Collision posts;
238.213, Corner posts; and 238.219, Truck-to-carbody attachment. To
maintain their integrity, these requirements apply as a whole. They
also apply in addition to the requirements of §§ 238.209(b);
238.215, Rollover strength; 238.217, Side structure; and 238.233,
Interior fittings and surfaces; and they apply with APTA standards
for occupant protection, as specified in this appendix.
For ease of comparison with the Tier I requirements in subpart C
of this part, this appendix is arranged in order by the Tier I
section referenced.
Use of this appendix to demonstrate alternative crashworthiness
and occupant protection performance for Tier I passenger equipment
is subject to FRA review and approval under § 238.201.
Occupied Volume Integrity
(a) Instead of the requirements of § 238.203, the units of a
Tier I alternative passenger trainset may demonstrate their
occupied volume integrity by complying with both the quasi-static
compression load and dynamic collision requirements in §§
238.703(b) and 238.705, respectively.
Override Protection
(b) Colliding equipment. Instead of the requirements of §
238.205, the units of a Tier I alternative passenger trainset may
demonstrate their ability to resist vertical climbing and override
at each colliding interface during a train-to-train collision by
complying with the dynamic collision requirements in §
238.707(a).
(c) Connected equipment. Instead of the requirements of
§§ 238.205 and 238.207, when connected, the units of a Tier I
alternative passenger trainset may demonstrate their ability to
resist vertical climbing and override by complying with the dynamic
collision requirements in § 238.707(b).
Fluid Entry Inhibition
(d) Instead of the requirements of § 238.209(a), each cab end of
a Tier I alternative passenger trainset may demonstrate its ability
to inhibit fluid entry and provide other penetration resistance by
complying with the requirements in § 238.709.
End Structure Integrity of Cab End
(e) Each cab end of a Tier I alternative passenger trainset is
subject to the requirements of appendix F to this part to
demonstrate cab end structure integrity. For those cab ends without
identifiable corner or collision posts, the requirements of
appendix F to this part apply to the end structure at the specified
locations, regardless of whether the structure at the specified
locations is a post.
End Structure Integrity of Non-Cab End
(f) Instead of the applicable requirements of §§ 238.211 and
238.213, the units of a Tier I alternative trainset may demonstrate
end structure integrity for other than a cab end by complying with
the requirements in § 238.713(b) and (c).
Roof and Side Structure Integrity
(g) A Tier I alternative passenger trainset is subject to the
requirements of §§ 238.215 and 238.217 to demonstrate roof and side
structure integrity.
Truck Attachment
(h) Instead of the requirements of § 238.219, the units of a
Tier I alternative passenger trainset may demonstrate their
truck-to-carbody attachment integrity by complying with the
requirements in § 238.717 (b) through (e).
Interior Fixture Attachment
(i)(1) A Tier I alternative passenger trainset is subject to the
interior fixture requirements in § 238.233. Interior fixtures must
also comply with APTA PR-CS-S-006-98, Rev. 1, “Standard for
Attachment Strength of Interior Fittings for Passenger Railroad
Equipment,” Authorized September 28, 2005, and those portions of
APTA PR-CS-S-034-99, Rev. 2, “Standard for the Design and
Construction of Passenger Railroad Rolling Stock,” Authorized June
11, 2006, relating to interior fixtures.
(2) The standards required in this paragraph (i) are
incorporated by reference into this paragraph with the approval of
the Director of the Federal Register under 5 U.S.C. 552(a) and 1
CFR part 51. All approved material is available for inspection at
Federal Railroad Administration, Docket Clerk, 1200 New Jersey
Avenue SE, Washington, DC and available from the American Public
Transportation Association, 1666 K Street NW, Washington, DC 20006,
www.aptastandards.com. It is also available for inspection
at the National Archives and Records Administration (NARA). For
information on the availability of this material at NARA, call
202-741-6030 or go to
www.archives.gov/federal-register/cfr/ibr-locations.html.
(i) APTA PR-CS-S-006-98, Rev. 1, “Standard for Attachment
Strength of Interior Fittings for Passenger Railroad Equipment,”
Authorized September 28, 2005.
(ii) APTA PR-CS-S-034-99, Rev. 2, “Standard for the Design and
Construction of Passenger Railroad Rolling Stock,” Authorized June
11, 2006.
Seat Crashworthiness (Passenger and Crew)
(j) Passenger seating. (1) Passenger seating in a Tier I
alternative passenger trainset is subject to the requirements for
seats in § 238.233 and must also comply with APTA PR-CS-S-016-99,
Rev. 2, “Standard for Passenger Seats in Passenger Rail Cars,”
Authorized October 3, 2010, with the exception of Section 6, “Seat
durability testing.”
(2) APTA PR-CS-S-016-99, Rev. 2, “Standard for Passenger Seats
in Passenger Rail Cars,” Authorized October 3, 2010, is
incorporated by reference into this paragraph (j) with the approval
of the Director of the Federal Register under 5 U.S.C. 552(a) and 1
CFR part 51. All approved material is available for inspection at
Federal Railroad Administration, Docket Clerk, 1200 New Jersey
Avenue SE, Washington, DC and is available from the American Public
Transportation Association, 1666 K Street NW, Washington, DC 20006,
www.aptastandards.com. It is also available for inspection
at the National Archives and Records Administration (NARA). For
information on the availability of this material at NARA, call
202-741-6030 or go to
www.archives.gov/federal-register/cfr/ibr-locations.html.
(k) Crew seating. Each seat provided for an employee
regularly assigned to occupy the cab of a Tier I alternative
passenger trainset, and any floor-mounted seat in the cab, must
comply with § 238.233(e), (f), and (g).
[83 FR 59228, Nov. 21, 2018]