Positive Train Control (PTC) failure modes

Securing Positive Train Control Systems

Positive train control (PTC) systems are distributed interoperable systems that control the movement of passenger and freight trains, providing significant safety enhancements over traditional methods of operating railroads. Due to their reliance on wireless communications, PTC systems are vulnerable to attacks that can compromise safety and potentially cause serious accidents. Designing PTC sy...

Use-Misuse Case Driven Analysis of Positive Train Control

Intelligent Transportation System/Positive Train Control at Highway-Rail Intersections

Since the mid-1990s, the U.S. Department of Transportation (U.S. DOT) Federal Railroad Administration (FRA) has sponsored research, conducted by the John A. Volpe National Transportation Systems Center of the U.S. DOT Research and Innovative Technology Administration (RITA), aimed at integrating Positive Train Control (PTC) and Intelligent Transportation System (ITS) technologies. The objective...

Simulation of Characteristic of Linear Degradation with Failure Modes

Regenerative Train Control Networks

A scenario for trains with autonomous rechargeable energy storage and delivery capability demonstrates the need for unconventional energy management systems. The distributed environment of controls and instrumentation is well suited to network communications even in this EMI rich environment. Network architecture description and benchmark analysis prototypes a control systems capable of meeting...