Official US Government Icon

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure Site Icon

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

The latest general information on the Coronavirus Disease 2019 (COVID-19) is available on the CDC website.

United States Department of Transportation United States Department of Transportation

Positive Train Control Braking Algorithm Evaluation Methodology Enhancement

Document Series
Technical Reports
Author
Federal Railroad Administration
Report Number
DOT/FRA/ORD-20/27
Office
RPD-33
Subject Positive Train Control
Keywords
Positive Train Control Braking Algorithm Evaluation Methodology Enhancement

This report describes the investigation and implementation of changes performed by Transportation Technology Center, Inc. (TTCI) to improve the efficiency and capabilities of the current Positive Train Control (PTC) braking algorithm evaluation methodology for freight operations. Improvements included: simulated cases with an addition of PTC enforcement warnings and enabling analysis of the results with a railroad network model; a determination of whether additional granularity is needed in scenarios that represent common industry operations; and modified the simulation process to increase simulation efficiency, which will decrease time and labor to complete PTC enforcement braking algorithm evaluations.


Last updated: Friday, July 10, 2020