ERTMS for low-traffic lines
New ERTMS standard (class A) for non-mainline railway lines
Compared to standard ERTMS, this system will require less trackside equipment and therefore have a lower economic cost than that of a typical ERTMS system, but with the same safety features.
The project has been divided into three clearly differentiated phases:
Phase 0, definition of the project plan and scope: characterization of regional lines and identification of pilot lines.
Phase 1, definition of the requirements for target lines in Spain: functional requirements, engineering rules, and necessary technologies.
Phase 2, pilot implementation and validation
Broken Rail 2
Demonstration of a broken rail detection system based on acoustic signal technology.
Building on the assumptions established in the Broken Rail 1 project, this project analyzes the feasibility of injecting an acoustic signal into the rail to detect partial or total rail breakage, including a predictive approach capable of identifying potential cracks prior to fracture.
The work focuses on two types of static systems, which differ in their source of vibration: in one case, an integrated signal generator within the system itself, and in the other, the rolling stock through wheel–rail contact.
The deployment of two prototypes is planned in the province of Ávila (line 100, Madrid-Irun).
Cross-T
Crossing Effects Between Trains. Analysis of the effects of the crossing between a high-speed train and a freight train (UIC project).
The project's objective is to gather and analyze the experience of other European railway infrastructure managers and operators in order to determine the safest crossing speed above the value currently established (200 km/h). By combining ADIF’s previous studies, carried out using a CFD (Computational Fluid Dynamics) model previously calibrated with real train circulation tests, with those of other infrastructure managers, a comprehensive set of results is available. These results represent the pressures, forces, and moments generated during crossings with different types of freight vehicles, both in open air and in tunnels.
In this way, for example, it will be possible to discuss in the most collaborative way possible what new measures would be necessary to implement in these trials. Furthermore, it should be noted that current requirements for freight rolling stock do not include methods to evaluate the pressures exerted on the cargo, so the development of a first version of an IRS would be a primary objective of the project.
3D Pilot
Demonstrator of an Automatic 3D BIM Linear Infrastructure Modeling System
The implementation of BIM technology is a key process in ADIF activities requiring innovation throughout the entire asset lifecycle, based on digital transformation and process automation. This project seeks a solution for the digitalization of linear infrastructure in 3D BIM format through the massive capture of data using Lidar sensors, 360º RGB cameras, GNSS and inertial positioning systems, and automated data processing.
The challenge addressed by this project is to verify that Industry 4.0 technologies, artificial intelligence, and conversion software are technically and economically viable for automating the generation of 3D BIM models of railway linear infrastructure.
Track view AV
Acquisition and implementation of an image capture system and viewer software to enable virtual tours of high-speed infrastructure
The objective of this project is to provide a georeferenced image database of the track, recorded from the driving cab of ADIF vehicles, allowing any ADIF employee to conduct a virtual visit to any point of the infrastructure.
The system will include images of the entire network (4,000 km) captured every 3 meters by cameras located in the front and rear cabs of the train, with track-level panoramas, zoom capability, distance measurement between two points, kilometer references, and more. Annual updates will allow the creation of a historical record to analyze changes over time and annotate any information of interest.
Ultimately, this project will enable the use of captured images as a tool for asset positioning and network digitalization.
Aeronoise
This project aims to identify the elements and precise measurement analyses required to draw conclusions on aerodynamic noise levels on high-speed railway lines. From this, strategies and policies will be established regarding aerodynamic noise levels for high-speed trains, enabling the future development of rolling stock optimized for this issue and recommending mitigation measures for both trains and infrastructure up to that point.
InBridge4EU
Improvement of European standards for railway bridges
InBridge4EU seeks to address these issues by developing an improved and harmonized method for evaluating the dynamic interface between European railway bridges and rolling stock. The project results will provide a solid foundation for the guidance currently being drafted by the DIBRST CEN/TC250/SC1 special group on bridge dynamics. Finally, the project will carefully assess the economic implications of changing any of the criteria, parameters, or methods mentioned above within the current landscape of European railway bridges.
Related links
Smart Grid (Pilot)
Smart rail power grid (pilot)
The objective of this project is to upgrade the current AC railway power network to an intelligent railway power network (Railway Smart Grid) with new functionalities and improved efficiency. The main challenges include:
Hympulso
Hybrid fuel cell power supply for railway applications
The main objectives of the project are:
This project aims to study and test the safety conditions of a hydrogen-powered vehicle, collaborate in the development of a refueling station, carry out the study of the necessary safety conditions for operation and supply of hydrogen, and define the safety for implementing hydrogen technology in the infrastructure.
Mini acoustic barriers
The project involves the installation of mini acoustic barriers in predominantly urban or peri-urban areas affected by train noise, to demonstrate the solution’s acoustic effectiveness by quantifying noise reduction for train speeds limited to below 160 km/h, while also demonstrating minimal visual impact. For the trial, mini and micro barriers will be installed on the conventional 276 Maçanet-Massanes – L’Hospitalet de Llobregat Line, between km 114+000 and 115+000. The acoustic effectiveness of the mini and micro barriers will be assessed by a research team from the LEAM-CATMech acoustics division at the Polytechnic University of Catalonia, specializing in vibroacoustics, environmental noise, and vibrations generated by railway infrastructure.
Battery Train
Battery train usage of batteries on non or partially electrified lines
Battery Multiple Units (BMUs) represent a sustainable alternative to gradually replace diesel trains on non-electrified sections. These vehicles can utilize existing electrification to charge their batteries on catenary-equipped sections and can also rely on static charging infrastructure at strategically located stations. Their implementation on the RFIG would contribute significantly to reducing the carbon footprint, particularly in corridors where full electrification is not feasible in the short to medium term.
This project aims to analyze the feasibility of BMUs from ADIF’s perspective within a UIC working group, assessing the infrastructure requirements for their deployment. Aspects to be studied include the installation of charging points at stations, the possibility of in-motion charging via rigid or conventional catenary, and the impact on railway operations. The aim is to develop a technical and strategic framework that facilitates the transition to a more sustainable and efficient railway system.
EU-rail
Projects from the first call in which Adif participates as a founding member
MOTIONAL (FA1+TT) Network management planning and control mobility management in a multimodal environment and digital enablers. Provide functional requirements, associated specifications and operational and technological solutions to enable future European traffic management and intermodality (FA1). It also facilitates the regulated exchange of harmonized data and its exploitation by numerical models (digital twins) that can interact with each other (TT).
R2DATO (FA2) Digital and automated train operation. Apply digitization technologies to continue developing ETCS (level 3, satellite, integrity, FMRCS communications, etc.), advance the automation of operations (ATO, autonomous and remote driving, maneuvers, etc.), and develop innovative solutions. The ultimate goal is to increase capacity, punctuality, flexibility, resilience and reduce operational costs.
IAM4RAIL (FA3) Intelligent integrated asset management. To provide new technical requirements, methods, solutions and innovative services based on the latest technologies to minimize or extend the life cycle costs of assets. Furthermore, safety is increased and the reliability, availability and capacity of the railway system are improved, addressing both infrastructure and rolling stock.
Rail4EARTH (FA4) A sustainable and green rail system. Improving the sustainability of the railway system by making it more attractive and resilient, contributing to the goals of a carbon-neutral Europe by 2050. The scope extends to rolling stock, infrastructure, stations and all their related subsystems (supply networks, traction, brakes, energy storage, etc.).
TRANS4RM-R (FA5) Transforming rail freight in Europe. To make rail freight transport the backbone of the most resilient and lowest-emission logistics chain, meeting the requirements of the end customer. Increase capacity, improve coordination and strengthen cross-border cooperation between infrastructure managers. Improve overall network management by rolling out and using new technologies such as digital coupling (DAC) and automation.
FutuRe (FA6) Regional rail services / Innovative rail services to revitalize capillary lines. Revitalize regional lines and strengthen their capillarity by optimizing productivity (train cost/km) while reducing the overall investment and maintenance costs (CAPEX+OPEX). Promote the use of low-cost solutions for ERTMS, dedicated rolling stock, infrastructure assets and services. To increase the quality of service, operational safety and customer satisfaction in order to consolidate the structuring and cohesive action of the railway in the different European regions.
CEDEX Projects
Projects commissioned by the Center for Studies and Experimentation of Public Works (CEDEX)
Vertical Track Dynamics. Characterization of the parameters influencing vertical track dynamics to optimize design, construction, and maintenance standards.
Digital maps of ERTMS infrastructure and assets. Definition of basic equipment for detecting infrastructure elements and their digitalization, carrying out measurement campaigns on the track with inspection trains and drones, and developing the data structure and database.
Track Infrastructure at Speeds > 300 km/h. Collection of information and simulations of trains running at speeds above 300 km/h, extraction of conclusions regarding maximum vertical deflection and acceleration levels expected in the rail and sleepers for new commercial and design speeds. Tests will be carried out in the track box at speeds exceeding 300 km/h.
Track Degradation from Train Passage. Study to quantify ballast, sleeper, and rail degradation. Development of novel procedures to determine the condition of the ballast bed.
CEDEX railway box. Full-scale (1:1) model testing in the CEDEX railway box to analyze any technological development or innovation deemed necessary by ADIF.
DC/AC Electronic Power Converters. Analysis of different topologies, switching strategies, operating parameters, and use of auxiliary components in DC/AC power electronic converters up to 1.5 MW, connected to 3,000 V catenary, to assess their influence on 50 Hz track circuits and audio-frequency circuits.
Training Courses. Delivery of courses on ERTMS and railway technology.
Carbon footprint. Development of a method for calculating the carbon footprint of ADIF facilities and services; creation of a guide for estimating carbon footprint, reducing emissions, implementing energy-saving policies, and providing advice for integrating the carbon footprint concept into public procurement.
Slope Revegetation. Selection of appropriate species based on CEDEX riparian vegetation sector maps and previous work. Development of best practices for sowing and planting these species.
Overpass protection. Bibliographic study of measures and technical specifications, and analysis of alternatives for protecting overpass pillars against train derailment.
Conservation and restoration of riverbeds and riverbanks. Study of operations and best practices for the maintenance of watercourses and banks: Clearing, pruning, shoring, prevention of obstructions in bridges and cross-drainage structures, removal of obstructive elements, management of aquatic vegetation (especially helophytes), control of erosion on banks and beds, and management of invasive exotic species.
EU-Rail projects (1st call)
Desarrollo de una solución para optimizar la gestión del tráfico ferroviario mediante el uso de la tecnología de inteligencia artificial
Adif publica la presente convocatoria de Consulta Preliminar al Mercado para abordar la fase de I+D+i de este proyecto que supone la preparación de un contrato para el desarrollo de una solución para optimizar la gestión del tráfico ferroviario mediante el uso de la tecnología de inteligencia artificial. El presupuesto estimado es de 0,6 millones de euros.
El plazo para la presentación de propuestas comenzará el día siguiente al de publicación de esta Resolución en el Perfil del Contratante de la Plataforma de Contratación del Sector Público, y se prolongará durante un plazo de dos meses. Este plazo podrá ser prolongado por el órgano convocante si así se considera oportuno en atención al desarrollo de la consulta.
Desarrollo y ensayo de un sistema detección de amenazas a la seguridad y la autoprotección en la explotación ferroviaria
Adif publica la presente convocatoria de Consulta Preliminar al Mercado para abordar la fase de I+D+i de este proyecto que supone la preparación de un contrato para el desarrollo y ensayo de un sistema de detección de amenazas a la seguridad y la autoprotección en la explotación ferroviaria. El presupuesto estimado es 0,6 M€.
El plazo para la presentación de propuestas comenzará el día siguiente al de publicación de esta Resolución en el Perfil del Contratante de la Plataforma de Contratación del Sector Público, y se prolongará durante un plazo de un mes. Este plazo podrá ser prolongado por el órgano convocante si así se considera oportuno en atención al desarrollo de la consulta.
Sistema de supervisión de zonas y puntos calientes en vagones ferroviarios que transportan mercancías peligrosas
Adif publica la presente convocatoria de Consulta Preliminar al Mercado para abordar la fase de I+D+i de este proyecto que supone la preparación de un contrato para el desarrollo y ensayo de un sistema de supervisión de zonas y puntos calientes en vagones ferroviarios que transportan mercancías peligrosas . El presupuesto estimado es 1,0 M€.
Sistema de protección independiente en zonas neutras de separación de fases eléctricas en líneas ferroviarias alimentadas en corriente alterna monofásica (SPZN)
Adif publica la presente convocatoria de Consulta Preliminar al Mercado para abordar la fase de I+D+i de este proyecto que supone la preparación de un contrato para el desarrollo y ensayo de un sistema de protección de Zonas Neutras en líneas alimentadas con corriente alterna monofásica. El presupuesto estimado son 0,6 M€.
We know that no one innovates alone, which is why we have enabled a channel through which any person or entity can send us their proposals for rail innovation. All the proposals must contain ideas or projects that can be applied to the infrastructure managed by Adif, whether directly or indirectly. Please bear in mind this is not a channel for presenting commercial products. All proposals sent to us will be analyzed in accordance with Adif's innovation management system, certified by the ISO 56001 standard. There are two ways to send us a proposal:
Please fill out the questionnaire at this link and answer all questions clearly and concisely so we can fully understand your proposal:
Proposals must be aligned with Adif's innovation challenges. You can consult these in the Challenges section or download the Innovation challenges map in pdf format. You can send any questions or suggestions to: innova@adif.es.
Your personal data will be added to a file owned by Adif. This file is intended to facilitate access to services offered on the website.
Adif and Adif AV Innovation Policy
The Adif and Adif AV Innovation policy was approved by the president in October 2025. It conforms to the ISO 56001 Innovation Management standard. The cross-cutting innovation policy involves all levels and members of both companies and will serve as the framework for setting annual innovation objectives and planning the resources needed to achieve them.
Regulatory framework
EU-Rail, the future of innovation
One of the visible aspects of Adif's drive for innovation is our presence as founding partners of Europe's Rail Joint Undertaking (EU-Rail), a European association for railway research and innovation created within the framework of the Horizon Europe program (2020-2021).
