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Title 49 Part 238 → Subpart E → §238.405

Title 49 → Subtitle B → Chapter II → Part 238 → Subpart E → §238.405

Electronic Code of Federal Regulations e-CFR

Title 49 Part 238 → Subpart E → §238.405

e-CFR data is current as of February 24, 2020

Title 49Subtitle BChapter IIPart 238Subpart E → §238.405


Title 49: Transportation
PART 238—PASSENGER EQUIPMENT SAFETY STANDARDS
Subpart E—Specific Requirements for Tier II Passenger Equipment


§238.405   Longitudinal static compressive strength.

(a) To form an effective crash refuge for crewmembers occupying the cab of a power car, the underframe of the cab of a power car shall resist a minimum longitudinal static compressive force of 2,100,000 pounds without permanent deformation to the cab, unless equivalent protection to crewmembers is provided under an alternate design approach, validated through analysis and testing, and approved by FRA under the provisions of §238.21.

(b) The underframe of the occupied volume of each trailer car shall resist a minimum longitudinal static compressive force of 800,000 pounds without permanent deformation to the car. To demonstrate compliance with this requirement, the 800,000-pound load shall be applied to the underframe of the occupied volume as it would be transmitted to the underframe by the full structure of the vehicle.

(c) Unoccupied volumes of a power car or a trailer car designed to crush as part of the crash energy management design are not subject to the requirements of this section.