Communications Based Positive Train Control Systems Architecture in the USA

Hartong, Mark; Goel, Rajni; Wijesekera, Duminda

doi:10.1109/vetecs.2006.1683416

Cited by 10 publications

(6 citation statements)

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“…The three major functional sub-systems of a PTC system (Hartong et al, 2006a) are the wayside subsystem, the mobile onboard, and the dispatch/control subsystem. These sub-systems communicate with each other over a variety of communication links.…”

Section: Positive Train Controlmentioning

confidence: 99%

Positive Train Control (PTC) failure modes

Hartong

Goel

Wijesekera

2011

Journal of King Saud University - Science

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Positive Train Control (PTC) systems can eliminate the consequences of collision or derailment. However, prior to the full-scale deployment of these systems, the Federal Government must conduct a regulatory review and approve the risk analysis of the PTC system performance. The objective of this review is to ensure that the operating environment after installation of the PTC system is at least as safe as the operating environment before the system installation. This paper is intended to provide researchers an understanding of PTC, the reason for its use, the regulatory requirements for the required comparative risk analysis of the PTC system, the critical failure modes that the comparative analysis must address, and future work that would facilitate the risk assessment process.

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Section: Positive Train Controlmentioning

confidence: 99%

Positive Train Control (PTC) failure modes

Hartong

Goel

Wijesekera

2011

Journal of King Saud University - Science

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“…Considering different types of transportation, maritime, air and road transport systems either already have an integrated collision avoidance system available or have one in its development phase. 4 The technologies for a collision avoidance system for trains are being investigated in many countries, including Germany, 5 America, 6 Japan 7 and India. 8 In recent years, there have been considerable research and development activities on the topics of the analysis of the causes of collisions, 9 hazard identification methods 10,11 and system solutions using specific sensor technologies, e.g.…”

Section: Introductionmentioning

confidence: 99%

Early warning system for potential train collisions: Enhancing safety levels of high-speed trains

Liu

Cai

Wang

2014

Proceedings of the Institution of Mechanical Engineers, Part F:

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Collision avoidance support for high-speed trains is a major safety target for railway operators. This paper presents a new concept for a train collision early warning system (TCEWS) that addresses the problem of train-to-train collisions. Similar to existing collision avoidance systems used by railway networks, the TCEWS approach allows drivers to ''see'' its neighborhood leading target train and have up-to-date and accurate knowledge of the traffic situation in the vicinity. However, the system architecture and operational principles of TCEWS have certain differences. The core idea is to build a system that is independent of the current railway signaling-based systems, e.g. the Chinese Train Control System level-2 or level-3. With additional sensors and prior information from the electronic track map database, the Global Navigation Satellite System is able to provide the ability for train state detection and collision risk assessment without relying on Automatic Train Protection or other existing train-borne equipments. Wireless communication enables the state of the train to be monitored and an early warning to be issued due to cooperation between the train and trackside facilities. The system components and working principles of the TCEWS are detailed in this paper, and the characteristics and advantages are summarized by comparisons with collision avoidance systems in railway and other transport modes. Implementation and field test of TCEWS on the Hankou-Yichang Railway are introduced and analyzed. It is demonstrated that the TCEWS has sufficient capability to be a ''safety overlay'' system on top of existing railway signaling systems, and has huge potential in ensuring safety levels of high-speed railways using the Global Positioning System, the BeiDou Navigation Satellite System or other global navigation satellite systems.

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“…However, the operations research community has largely ignored the issue of cross-domain trust management system performance when trains reach an interchange point. With the implementation of secure positive train control (PTC) [17] in the U.S. railroad system, cross-domain scheduling, train movement and authority management must all work in concert.…”

Section: Introductionmentioning

confidence: 99%

Secure Cross-Domain Train Scheduling

Hartong

Goel

Wijesekera

2009

IFIP Advances in Information and Communication Technology

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Track configurations at cross-domain interchange points, train performance characteristics and cross-domain authentication often produce significant train delays that can impact large segments of a railroad network. This paper presents a model that captures the behavior of trains and the track infrastructure. The model enables railroad signal engineers to quickly estimate the required trust management system performance that will support safe, secure and efficient railroad operations.

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Communications Based Positive Train Control Systems Architecture in the USA

Cited by 10 publications

References 0 publications

Positive Train Control (PTC) failure modes

Positive Train Control (PTC) failure modes

Early warning system for potential train collisions: Enhancing safety levels of high-speed trains

Secure Cross-Domain Train Scheduling

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