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SPACE FOR RAIL - DOWNSTREAM APPLICATIONS
Improving the sustainability of the rail transport system
Globally, demand for transport is growing at an unprecedented pace, while the urgency to reduce CO₂ emissions and mitigate climate change has never been greater. The railway sector is uniquely positioned to address both challenges, offering a pathway to become Europe’s most sustainable, energy‑efficient, and cost‑effective transport mode.
Digitalisation is a key enabler of this transformation. By integrating advanced technologies, railways can significantly improve capacity, safety, reliability, and operational efficiency while reducing environmental impact.
How are we supporting the rail sector?
ESA’s Business Applications and Space Solutions (BASS) supports activities that leverage space‑based assets—including satellite navigation, satellite communications, and Earth observation—to develop innovative, commercially viable, and scalable applications for the rail sector. These space‑enabled solutions have the potential to enhance rail operations, support modal shift, and contribute meaningfully to climate and sustainability objectives.
Challenges
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Command, Control and Signalling (CCS)Europe’s rail system faces a critical challenge in evolving its control, command and signalling (CCS) architecture to meet future capacity, safety, and sustainability needs while remaining economically viable. The transition towards advanced ERTMS concepts—such as ETCS Level 3, moving and virtual blocks, and higher levels of automation—requires reliable, interoperable localisation, communication, and integrity solutions that can operate across diverse operational environments. These challenges are particularly acute on regional and secondary lines, where conventional signalling solutions are often cost‑prohibitive, yet where digitalised, interoperable signalling is essential to unlock efficiency gains and ensure network‑wide cohesion. |
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Improving the performance of the railway systemImproving the performance of the railway system is essential to cope with growing traffic demand, aging infrastructure, and increasing expectations for reliability and safety. Infrastructure managers and railway undertakings face persistent challenges related to limited asset visibility, fragmented data, reactive maintenance practices, and exposure to environmental and operational risks. Overcoming these challenges requires innovative, data‑driven approaches that enable better monitoring, predictive maintenance, resilience, and decision‑making, while reducing lifecycle costs and improving the efficiency of infrastructure and operations. |
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Enhancing the appeal of the railway systemEnhancing the appeal of rail transport remains a strategic challenge in the context of strong competition from road and air transport. Passengers and freight customers increasingly expect seamless connectivity, accurate real‑time information, integrated multimodal services, and transparent, reliable logistics chains. Delivering such user‑centric services across the rail network is hindered by uneven digital coverage, legacy systems, and the complexity of integrating rail into broader mobility and logistics ecosystems. Addressing these challenges is essential to improve user experience, support modal shift, and position rail as the backbone of a sustainable and competitive European transport system.
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Value of Space
Space technologies—including satellite navigation, satellite communication, and Earth observation—provide critical enablers for the digital and sustainable transformation of the railway system. By offering capabilities that are global, interoperable, and resilient by design, space‑based assets complement terrestrial solutions and help overcome structural, geographical, and economic constraints across the rail network, from core corridors to regional and secondary lines.
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Satellite Navigation (Satnav)Satellite navigation delivers pervasive and continuous positioning capabilities that underpin a wide range of railway applications. In the context of future control, command and signalling, satellite navigation supports enhanced train localisation which is essential for advanced ERTMS functionalities and higher levels of automation. Beyond signalling, satellite‑based positioning enables applications such as:
contributing to both operational performance and improved passenger experience. The integration of satellite navigation with onboard sensors further enhances position and velocity accuracy, increasing robustness in challenging railway environments. |
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Satellite Communications (Satcom)Satellite communications provide ubiquitous, resilient connectivity that extends and complements terrestrial communication networks along rail corridors and in remote or underserved areas. This capability is increasingly relevant in the context of the Future Railway Mobile Communication System (FRMCS), where satellite links can support hybrid architectures within the 5G ecosystem, enhancing coverage, redundancy, and service continuity. Satellite communications also enable additional applications such as:
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Satellite Earth Observation (SatEO)Earth observation offers systematic, wide‑area, and periodic monitoring capabilities that enhance situational awareness and infrastructure management across the rail network. By leveraging optical and radar data with different spatial and temporal resolutions, Earth observation supports applications including:
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Work with us
Companies across the railway value chain located in ESA BASS participating Member States may submit proposals under Business Applications and Space Solutions (BASS), part of ESA’s ACCESS programme, via the generic call for proposals to develop and demonstrate space‑enabled railway applications.
BASS provides an industry‑initiated, flexible framework with ESA co‑funding, enabling companies to de‑risk innovation, engage directly with end users, and validate solutions based on satellite navigation, satellite communications and Earth observation in real operational environments, supporting the deployment of scalable and commercially sustainable services for the rail sector.
For specific requests concerning the generic call for proposals please contact space4rail@esa.int.
