# Vehicle/Track Interaction Safety Standards; High-Speed and High Cant Deficiency Operations
> **Federal Railroad Administration** · Final rule. · Published 2013-03-13 · Effective 2013-07-11 · 78 FR 16052
## Document
- **Document number:** 2013-04679
- **Category:** railroad-safety
- **Sub-agency:** Federal Railroad Administration
- **Federal Register citation:** 78 FR 16052
- **CFR reference:** 49 CFR 213
- **Publication date:** 2013-03-13
- **Effective date:** 2013-07-11
- **DOT docket:** Docket No. FRA-2009-0036, Notice No. 2
## Abstract

FRA is amending the Track Safety Standards and Passenger Equipment Safety Standards to promote the safe interaction of rail vehicles with the track over which they operate under a variety of conditions at speeds up to 220 m.p.h. The final rule revises standards for track geometry and safety limits for vehicle response to track conditions, enhances vehicle/track qualification procedures, and adds flexibility for permitting high cant deficiency train operations through curves at conventional speeds. The rule accounts for a range of vehicle types that are currently in operation, as well as vehicle types that may likely be used in future high-speed or high cant deficiency rail operations, or both. The rule is based on the results of simulation studies designed to identify track geometry irregularities associated with unsafe wheel/rail forces and accelerations, thorough reviews of vehicle qualification and revenue service test data, and consideration of international practices.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2013/03/13/2013-04679/vehicletrack-interaction-safety-standards-high-speed-and-high-cant-deficiency-operations)
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