News & articles

News & articles

1611, 2020

Safety verification methods for rail control software

Guide, Safety|

Since the introduction of modern software-based automated rail control solutions, the complexity of rail control- and signalling systems has grown significantly. These advanced systems can help optimizing the use of critical infrastructure resulting in a better passenger experience, but the main priority is always to guarantee safety. Here, we share an overview of the safety verification practices commonly used in rail control projects in The United States, Sweden and France.

1006, 2020

Signal modernization at Stockholm Metro

Guide, Signaling systems|

Stockholm Metro has a diverse and complex network with light rail, suburban rail and subway systems. Its signaling systems are a mix of computerized and relay-based interlockings, with modern, centralized traffic management systems.We will take a closer look at two distinct projects of Stockholm Metro; the extension of one of the subway lines using legacy union switch & signal relay-based interlocking and the capacity increase project on a suburban rail line utilizing modern computerized interlockings.

410, 2017

Automated verification and validation of signaling systems in PTC and CBTC environments

Guide, Verification & validation|

The digitalized railway signaling systems of today are becoming increasingly complex with more and more functionality added to make better use of the existing infrastructure, while maintaining the highest level of safety. This also means that the task of assessing the safety and function of these systems becomes more and more complex and often constitutes a significant part of the overall development costs.In this paper, we look at a solution for automating a significant part of these verification and validation tasks, and at how it's been applied to signaling systems in PTC and CBTC environments.

1611, 2020

Safety verification methods for rail control software

Guide, Safety|

Since the introduction of modern software-based automated rail control solutions, the complexity of rail control- and signalling systems has grown significantly. These advanced systems can help optimizing the use of critical infrastructure resulting in a better passenger experience, but the main priority is always to guarantee safety. Here, we share an overview of the safety verification practices commonly used in rail control projects in The United States, Sweden and France.

1006, 2020

Signal modernization at Stockholm Metro

Guide, Signaling systems|

Stockholm Metro has a diverse and complex network with light rail, suburban rail and subway systems. Its signaling systems are a mix of computerized and relay-based interlockings, with modern, centralized traffic management systems.We will take a closer look at two distinct projects of Stockholm Metro; the extension of one of the subway lines using legacy union switch & signal relay-based interlocking and the capacity increase project on a suburban rail line utilizing modern computerized interlockings.

410, 2017

Automated verification and validation of signaling systems in PTC and CBTC environments

Guide, Verification & validation|

The digitalized railway signaling systems of today are becoming increasingly complex with more and more functionality added to make better use of the existing infrastructure, while maintaining the highest level of safety. This also means that the task of assessing the safety and function of these systems becomes more and more complex and often constitutes a significant part of the overall development costs.In this paper, we look at a solution for automating a significant part of these verification and validation tasks, and at how it's been applied to signaling systems in PTC and CBTC environments.

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