federal_register: 2023-07558
Data license: Public Domain (U.S. Government data) · Data source: Federal Register API & Regulations.gov API
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| document_number | title | type | abstract | publication_date | pub_year | pub_month | html_url | pdf_url | agency_names | agency_ids | excerpts | regulation_id_numbers |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2023-07558 | Railroads' Joint Request To Amend Their Positive Train Control Safety Plans and Positive Train Control Systems | Notice | This document provides the public with notice that on March 22, 2023, twenty host railroads submitted a joint request for amendment (RFA) to their FRA-approved Positive Train Control Safety Plans (PTCSP) reflecting the updated PTC onboard software, I-ETMS On-Board 6.5.0 and On-Board 6.5.1. This RFA includes modifications to the associated PTC Concept of Operations and PTC System Description documents, change or addition of system safety-critical functionality, modification to target safety levels and changes to the human-machine interface which requires amendments to PTC training for train crews. The functionality changes include: updates to Train Restriction Types to address the Pipeline and Hazardous Materials Safety Administration (PHMSA) final rule which restricts operating speeds of High-Hazard Flammable Train; the addition of a new system safety critical function, PTC Suspension, that prevents the generation and enforcement of targets within the limits of a PTC Suspension area with the exception of navigation failure and synchronization errors; and updates to the onboard display to show prompting to the train crew whenever a system fault related to braking prediction calculation exits. As this joint RFA involves requests for FRA's approval of the proposed material modifications to FRA-certified positive train control (PTC) systems, FRA is publishing this notice and inviting public comment on railroads' joint RFA to their PTCSPs. | 2023-04-11 | 2023 | 4 | https://www.federalregister.gov/documents/2023/04/11/2023-07558/railroads-joint-request-to-amend-their-positive-train-control-safety-plans-and-positive-train | https://www.govinfo.gov/content/pkg/FR-2023-04-11/pdf/2023-07558.pdf | Transportation Department; Federal Railroad Administration | 492,185 | This document provides the public with notice that on March 22, 2023, twenty host railroads submitted a joint request for amendment (RFA) to their FRA-approved Positive Train Control Safety Plans (PTCSP) reflecting the updated PTC onboard software,... |