scholarly journals Securing Positive Train Control Systems

2007 ◽  
pp. 57-72 ◽  
Author(s):  
Mark Hartong ◽  
Rajni Goel ◽  
Duminda Wijesekera
Keyword(s):  
Control Systems ◽  
Train Control ◽  
Positive Train Control

Regulatory Risk Evaluation of Positive Train Control Systems

2007 ◽  
Author(s):  
Mark W. Hartong ◽  
Olga K. Cataldi
Keyword(s):  
Control Systems ◽  
Risk Evaluation ◽  
Risk Assessments ◽  
Performance Standard ◽  
Risk Modeling ◽  
Department Of Transportation ◽  
Train Control ◽  
Modeling Techniques ◽  
Positive Train Control ◽  
The U.S

In February of 2005, the Federal Railroad Administration of the U.S. Department of Transportation issued a set of new performance-based regulations governing the development and use of microprocessor-based signal and train control systems. The new standard, effective March 2005, requires that replacement systems be at least as safe as the existing condition. Among the key elements used in evaluating the compliance of products to the new performance standard are quantitative and qualitative risk assessments. This paper explains the performance standard that must be followed, the regulatory background behind it, various quantitative and qualitative risk modeling techniques that can be used to support claims of compliance, and issues associated with their implementation.

Positive Train Control and the Rail Safety Improvement Act of 2008

2010 ◽  
Author(s):  
Mark Hartong ◽  
Rajni Goel ◽  
Duminda Wijesekera
Keyword(s):  
Control Systems ◽  
Traffic Control ◽  
High Profile ◽  
Train Control ◽  
Safety Regulations ◽  
Safety Improvement ◽  
Union Pacific ◽  
The Us ◽  
Positive Train Control ◽  
Track Circuits

A series of high profile rail accidents, culminating in a head on collision on September 12, 2008 between a Union Pacific freight train and a METROLINK passenger train in Chatsworth, California, provided the impetus for the passage of the Rail Safety Improvement Act (RSIA) of 2008 (Public Law 110–432). The RSIA mandated the installation of Positive Train Control Systems across the US rail system by December 31, 2015. These new statutory requirements represent one of the most significant changes in US signal and train control systems since the introduction of track circuits and Centralized Traffic Control in the 1920’s. This paper discusses the background which led to the passage of the RSIA, the new PTC requirements imposed by the law, and highlights the significant changes from existing federal safety regulations associated with voluntary PTC implementations that are being adopted by the to meet the law’s requirement.

scholarly journals The Study of Interoperability Test for Onboard Control System in Railway Condition

2011 ◽  
Vol 2-3 ◽  
pp. 785-790
Author(s):  
Jong Hyen Baek ◽  
Yong Kyu Kim ◽  
Jae Ho Lee ◽  
Hyen Jung Jo
Keyword(s):  
Control System ◽  
Control Systems ◽  
Data Systems ◽  
Test Results ◽  
Simulation Environment ◽  
Train Control ◽  
Interoperability Test ◽  
Critical Characteristics ◽  
Site Test ◽  
Onboard Equipment

For the purpose of improving the future domestic train control systems and securing interoperability, according to the global development trends of train control systems, it is presented that the test results of interoperability between wayside train control systems installed in existed line, and the onboard train control system. Due to the safety-critical characteristics of train systems, the site test in the section where the wayside equipment is installed may lead to a danger against safety. Therefore, by way of constructing a simulation environment of train control systems, the T/R data systems of the equipment for interoperability are confirmed and the interoperability test are obtained by applying these systems to onboard equipment.

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