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Solutions

Signalling

Comprehensive Railway Control and Signalling Solutions

Solutions

Much more than meets the eye

At CAF, we know there is much more to railway signalling than meets the eye because we design and provide comprehensive, state-of-the-art control, command, and signalling solutions.
We develop cutting-edge solutions for general-purpose and urban lines that cover infrastructure, onboard equipment, and control centres.

Our technology enables operators and infrastructure managers to ensure the highest safety standards and optimise railway flow.
For us, every project is unique. That is why we offer tailored solutions to meet each client's specific needs, working together to create more efficient, safe, reliable, and environmentally friendly railway transport.

We design and provide comprehensive, state-of-the-art control, command, and signalling solutions

Signalling Solutions

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Explore our signalling solutions

Solutions

AURIGA:  ETCS level 1 y 2 & ATO

AURIGA is a comprehensive solution for the European Railway Traffic Management System (ERTMS) and Automatic Train Operation (ATO), covering infrastructure and onboard vehicle systems.

It provides high-performance ERTMS solutions for Level 1 (AURIGA L1) and Level 2 (AURIGA L2) and mixed systems where both levels coexist, ensuring interoperability. It also offers significant benefits in operational and maintenance areas.

OPTIO: The CBTC Option

OPTIO’s flexibility, adaptability, and scalability enable railway operators to elevate their infrastructure to a new level of service quality while maintaining options for future updates and enhancements.

OPTIO

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QUASAR Q4: Electronic Interlocking

QUASAR Q4 is the cornerstone of CAF's signalling solutions. Pioneering the application of EN-50126 and related standards, the QUASAR Q4 electronic interlocking has evolved to support new functionalities and compatibility with ERTMS systems.

NAOS: Integrated Control Centres

NAOS has been specifically developed for the integrated and multifunctional control centres required by today’s railway infrastructure control, command, and signalling systems.

The NAOS integrated control centre provides an integration platform encompassing several vital systems. It includes centralised traffic control (CTC), energy control systems, SCADA systems for managing auxiliary equipment, control centres for detectors, and maintenance support systems to offer a comprehensive and efficient solution for railway management.

Articles of interest

Optimal railway management

As specialists in railway signalling and control, CAF’s technology ensures the highest standards of safety and efficiency in urban environments and main lines.
We apply our extensive knowledge and experience to the development of a range of products and services that include complete solutions for all types of railway systems:

MASS Transit

Public transport is key to transforming cities into more practical and sustainable environments.
Transport systems must embrace digital innovation to meet the ever-increasing passenger demand by:

Improving service quality

Increasing train punctuality and frequency

Increasing flexibility in operations

Optimising energy efficiency

Optimising lifecycle costs

Improving safety and reliability

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OPTIO, CAF’s CBTC system, includes ATP (Automatic Train Protection), ATO (Automatic Train Operation), and ATS (Automatic Train Supervision), compliant with IEEE 1474 and IEC 62290 standards.


Using cutting-edge technologies, OPTIO can integrate with all types of operators. By achieving the highest levels of availability in safety-critical operations and meeting all functional requirements, OPTIO allows railway operators to elevate their infrastructure to the next level through flexibility, adaptability, and scalability.


The system can be used in any degree of automation (GoA1 to GoA4) and offers the option of a step-by-step approach for a seamless transition and adoption of technology.


OPTIO supports the deployment of completely new lines and the modernisation of existing infrastructure. It is ready to interact with demanding systems, enabling customised strategies for railway operators.

 

Mainline Signalling Trackside

CAF provides comprehensive solutions for all types of main lines (high-speed, conventional, freight and passenger), and our technology allows us to respond to the specific needs of each client.

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SIL4 electronic interlocking for all types of railway applications

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QUASAR Q4

Trackside solution for Automatic Train Protection (ATP) based on the interoperable ETCS standard. It incorporates state-of-the-art technology to integrate into comprehensive, scalable, and interoperable ERTMS solutions that achieve a high degree of availability in safety-critical operations.

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AURIGA TS

Flexible and modular solution for integrated and multifunctional control centres which enables the management and integration of traffic control systems and multidisciplinary applications.

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NAOS

Mainline Signalling Automation

Automatic Train Operation (ATO) systems are transforming the railway ecosystem. This cutting-edge technology contributes to increased punctuality, energy efficiency, passenger comfort, and improved traffic regulation.

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This is the ATO system for ERTMS that enables Automatic Train Operation up to Grades of Automation GoA2, following the Technical Specifications for Interoperability (TSI) standards. The AURIGA ATO system and Perception systems are being used to develop systems with Grades of Automation up to GoA4.

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AURIGA ATO

From the trackside, it automatically plans and regulates any line with ATO, optimising energy consumption and ensuring punctuality by adjusting train speeds. This system allows real-time resolution of conflicts caused by incidents..

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NAOS ATO

ERTMS & ATO Onboard

The flexible architecture of our compact and modular technology allows it to meet any specific need and adapt to all types of vehicles and platforms.

AURIGA OBS enables scalable strategies, depending on operational needs and trackside infrastructure availability, progressing from ERTMS N1 to N2 and ERTMS N2 with ATO.

It is a benchmark-optimised solution in the international market that allows interoperability, making it fully compatible with trackside ETCS systems from other manufacturers. AURIGA OBS monitors train movement with high availability and safety.

The system's key features are:

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2oo3 redundant architecture providing very high availability and fault tolerance.

Availability

Exact and robust system with dynamic redundancy

Odometer

Which use system bus standards to minimise cabling.

Flexible train interfaces

It minimises the space required inside the train.

Compact design

Development under a certified Safety and Lifecycle Management System (compliant with the standard safety method 402/2013 and CENELEC EN 50126, EN 50128, EN 50129).

SIL4 safety

Tram Signalling

CAF creates customised tramway solutions that have proved successful in comprehensive projects, adapting to each client's needs and integrating our own and third-party products.

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Interlocking based on a modular hardware platform widely tested in light rail projects.

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QUASAR Q4

Proprietary ESB bus system, where different systems needed to operate and maintain a tramway system are integrated at control centre level.

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BUS NAOS

Proprietary integrated control centre applications for tramway control and operation.

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CTC, SCADA

Train protection system applications.

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ATP

Extensive experience in integrating auxiliary systems.

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AVLS, RSS, TPS

Traffic Management systems

Our NAOS system has been deployed in numerous projects worldwide.

 

This proprietary technology enables us to develop cutting-edge ad-hoc solutions adaptable to all areas and the needs of any operator.

 

The NAOS family enables configurations and adaptations for urban and mainline environments and, for different types of projects, brownfield/greenfield.

 

Applications of the NAOS system include those associated with Railway Traffic Control (CTCs), Energy Remote Control (SCADA), and integration under a common platform of other systems such as station control systems, CCTV and HVAC.

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