Research into Enhanced Track, Switches and Structure The railway of the future needs to meet the predicted growth in societal demand in terms of capacity and service, address the environmental challenges of the 21st century, and enable the political objectives of the European Union. IN2TRACK is to set the foundations for a resilient, consistent, cost-efficient, high capacity European network by delivering important building blocks that unlock the innovation potential that have been identified as part of the Shift2Rail Innovation Programme 3. Overall objectives of IN2TRACK are divided into three parts; Enhancing and optimising the switch & crossings and track systems in order to ensure the optimal line usage and capacity; Investigating novel ways of extending the life of bridges and tunnel assets through new approaches to maintaining, repairing and upgrading these structures; Development and adoption of a holistic, whole system-approach. A whole-system approach ,which is defined as the system boundaries extending from dynamic wheel-rail interaction (loading input) through to degradation of the S&C system, sub-systems, individual components, and underlying track foundation, will also be at the heart of IN2TRACK on how to reach the objectives. This IN2TRACK proposal addresses each of the areas identified in the H2020-S2RJU-2016-01 call. IN2TRACK is fully aligned with Shift2Rail IP3 in its objectives, approach, and ambition; addressing early enhancements and innovation opportunities.

The IN2TRACK2 proposal addresses the topic of “Research into optimised and future railway infrastructure” of the 2018 HORIZON 2020 SHIFT2RAIL Call for proposals for the Joint Undertaking Members (S2R-CFM-IP3-01-2018). IN2TRACK2 deals with rail infrastructure sub-system and covers all the works on Switch & Crossing (S&C), Track and Structures (Bridges and Tunnels) included in the SHIFT2RAIL Innovation Programme 3 (including the project IN2TRACK) and contributes to the full longer-term SHIFT2RAIL objectives. IN2TRACK2 represents the opportunity to choose some high-risk, innovative activities from the current SHIFT2RAIL work programme for development under intensive collaboration as the right path for success. IN2TRACK2 aims to reduce lifecycle costs, improve reliability and punctuality, whilst increasing capacity, enhancing interoperability and improving the customer experience. The structure of the work plan is designed around the development of a certain number of well-focused technological innovations in several areas (S&C, Track and Structures), each and all together, will contribute to achieve the desired impact at the overall railway system level. The IN2TRACK2 proposal is organised around three technical sub-projects, which are interconnected: S&C, Track and Structures. S&C activities aim at both improving the operational performance of existing S&C and providing radical new S&C system solutions that deliver a step-change in performance of the asset. The IN2TRACK2 Track activities aim at both exploring new track construction to optimise the today track system and improving the track system substantially to provide a step change in performance. The IN2TRACK 2 Bridges and Tunnels activities aim at improving methods and repair techniques to reduce costs, improve quality and extend the service life of structures. By enhancing S&C, Track and Structures, IN2TRACK2 contributes to all of the expected impacts identified in the Shift2Rail Annual Work Plan 2018.

The goal of CITRES is to provide new energy storage devices with high power and energy density by developing novel multilayer ceramic capacitors (MLCCs) based on relaxor thin films (RTF). Energy storage units for energy autonomous sensor systems for the Internet of Things (IoT) must possess high power and energy density to allow quick charge/recharge and long-time energy supply. Current energy storage devices cannot meet those demands: Batteries have large capacity but long charging/discharging times due to slow chemical reactions and ion diffusion. Ceramic dielectric capacitors – being based on ionic and electronic polarisation mechanisms – can deliver and take up power quickly, but store much less energy due to low dielectric breakdown strength (DBS), high losses, and leakage currents. RTF are ideal candidates: (i) Thin film processing allows obtaining low porosity and defects, thus enhancing the DBS; (ii) slim polarisation hysteresis loops, intrinsic to relaxors, allow reducing the losses. High energy density can be achieved in RTF by maximising the polarisation and minimising the leakage currents. Both aspects are controlled by the amount, type and local distribution of chemical substituents in the RTF lattice, whereas the latter depends also on the chemistry of the electrode metal. In CITRES, we will identify the influence of substituents on electric polarisation from atomic to macroscopic scale by combining multiscale atomistic modelling with advanced structural, chemical and electrical characterizations on several length scales both in the RTF bulk and at interfaces with various electrodes. This will allow for the first time the design of energy storage properties of RTF by chemical substitution and electrode selection. The ground-breaking nature of CITRES resides in the design and realisation of RTF-based dielectric MLCCs with better energy storage performances than supercapacitors and batteries, thus enabling energy autonomy for IoT sensor systems.

The European railway industry faces great challenges in need for increased network capacity. Ageing infrastructure assets require efficient and sustainable interventions to maintain and improve current levels of performance. To meet these demands and increase the operational performance of the railway infrastructure assets, innovation is needed to enable a step-change in reliability, availability, maintainability and safety (RAMS) and also to optimise asset capital and LCC. The IN2TRACK3 proposal addresses the topic of “Research into optimised and future railway Infrastructure” of the 2020 Horizon 2020 SHIFT2RIL call. The project is a continuation of IN2TRACK and IN2TRACK2 and aims to further develop and demonstrate research results and innovations developed. IN2TRACK3 will develop physical as well as digital technology and methodology demonstrators for the Track, Switches & Crossings and Bridge & Tunnel assets and the project is aligned to the SHIFT2RAIL overall aims. The project structure is designed around three technical sub-projects aiming at both improving the operational performance of existing infrastructure assets and providing radical new system solutions delivering a step-change in performance, improving methods and repair techniques, improve quality, reduce costs and extend the service life of assets and structures. The project is led by Trafikverket, the Swedish Transport Administration Agency, the consortium consists of 27 expert partners originating from 11 European countries and the partners involved are infrastructure managers, research partners, technology developers and industry partners. IN2TRACK3 will further develop and demonstrate a number of innovative solutions based upon the two previous projects and the work will build upon already ongoing mutually beneficial collaboration, established communication paths and a considerable amount of mutual trust built upon years of collaboration in international project environments.