The NEXUS project launches surveys across Europe to understand passenger behaviour and needs

Co-funded by the European Union, the NEXUS project seeks to redefine metro transportation in European cities. As part of the European Rail’s Joint Undertaking, the European partnership on rail research and innovation, the project’s goals and priorities align with their vision and efforts to harmonise rail operations, integrate advanced technologies, and address societal challenges.

The project’s current focus is on investigating and optimising various aspects of metro operations, with the purpose of placing passenger needs at the center of planning, as understanding passenger behaviour plays a crucial role in enhancing the efficiency and effectiveness of metro operations.

Why Passenger Behaviour Matters

Passenger behaviour is central to achieving the goals of the NEXUS project. Efficiently designed metro vehicles and platforms can reduce changeover times, directly improving system capacity and operational stability. By gaining insights into passenger behaviour, the project aims to enhance distribution on platforms and within vehicles, which in turn reduces dwell time (which refers to the amount of time that the vehicle stops to serve passengers) at stations.

Optimized platform and vehicle designs can lower passenger density inside carriages, improving comfort and encouraging greater use of metro systems. Moreover, a more efficient metro system uses fewer resources, supporting environmental sustainability and reducing the ecological footprint of urban transportation.

Key Insights from Passenger Surveys

The “Passenger Requirements and Behaviour” survey is divided into four main categories, each addressing important aspects of metro operations:

1. Acceptance of Autonomous Metro Systems: The goal of this category is to examine public perception, trust, and potential benefits of driverless metro systems.

2. Real-Time Information Systems: Here, we want to investigate how real-time information can improve passenger distribution on platforms and reduce crowding.

3. Safety Improvements through Platform Design: This category of questions assesses how measures such as platform screen doors and reduced platform crowding contribute to increased safety and smoother passenger flow.

4. Vehicle Layout Preferences: Finally, we want to explore how different seating and standing configurations impact passenger comfort, accessibility, and overall travel experience.
These factors are interconnected, and their combined influence is essential for designing efficient, safe, and passenger-friendly metro systems.

Applying Insights to Metro Design

The survey results will provide actionable insights for metro system design. For example, the placement of entrances and exits on platforms significantly influences passenger distribution within vehicles. Poorly positioned access points can lead to uneven passenger distribution, increasing the amount of time that the vehicle must stand at the station serving passengers. To address this, staircases, escalators, and elevators can be strategically positioned across stations to encourage balanced passenger flow.
Real-time information systems also play a critical role in improving platform distribution. By guiding passengers to less crowded boarding areas, these systems help reduce congestion at specific vehicle doors.
Vehicle layout is another important consideration. Insights into passenger preferences for standing and seating arrangements enable the design of interiors that minimize congestion near entry points and promote even distribution throughout carriages. These improvements can contribute to faster boarding and alighting processes and greater overall efficiency.

Overcoming Challenges in Data Collection

Designing the survey posed several challenges due to the complexity of passenger behaviour and requirements. The diverse experiences and perspectives of team members made it difficult to define a clear focus initially, but multiple revisions and extensive collaboration ensured the survey addressed relevant topics effectively.
Distributing the survey across European cities such as Genoa, Sofia, and Barcelona requires significant coordination with various partners. Translating the survey into multiple languages added another layer of complexity, requiring clear definitions and plain language to avoid misunderstandings. Despite these challenges, the team’s commitment resulted in a comprehensive and well-received survey.

To ensure a diverse range of perspectives, the survey will be distributed across multiple European cities and promoted through posters, flyers, social media, and newsletters. Although the survey aims to capture a wide array of passenger experiences, there is room for improvement regarding the level of accessibility to individuals without smartphones or familiarity with QR codes.

Shaping the Future of Urban Transport

The insights derived from these surveys will significantly contribute to other key aspects of the NEXUS project, such as adaptability analysis and the integration of AI and data science in metro operations. By prioritising passenger needs and behaviour, the project aims to optimise platform and vehicle designs and implement real-time information systems to reduce dwell times and enhance the overall travel experience.

These advancements will help address crucial challenges and guide European metros toward a more inclusive and transformative future. Interested in contributing to this initiative? Share your thoughts by participating in the survey here: https://www.surveymonkey.com/r/nexus_general

The NEXUS Project’s contribution to the broader strategic direction of rail innovation in Europe

The NEXUS project, dedicated to transforming metro systems across European cities, is well-positioned to support and contribute to the broader strategic direction of rail innovation in Europe.

Europe’s Rail Joint Undertaking (ERJU) General Assembly took place on November 21–22, 2024, and made clear how NEXUS’s goals complement Europe’s push for sustainable, efficient, and user-focused rail systems. The event provided an overview of ongoing efforts to harmonize rail operations, integrate advanced technologies, and address societal challenges — all priorities reflected in NEXUS.

A Shared Vision for Adaptability and Efficiency

A key theme at the General Assembly was the need for rail systems to become more adaptable to changing demands and resilient to disruptions. This aligns with NEXUS’s central mission: enabling metro systems to respond dynamically to real-time passenger needs. By developing models that simulate passenger flows and optimize train operations, NEXUS introduces practical tools for improving service efficiency without costly infrastructure overhauls.

Sessions during the Assembly emphasized the importance of delivering technology that addresses real-world problems, such as reducing energy consumption and operational costs. NEXUS contributes to this vision through its focus on energy optimization and predictive maintenance, applying AI-driven solutions to streamline operations and enhance sustainability. These innovations directly support Europe’s ambitions for greener, cost-effective transport systems.

Integration of Automation and Technology

Europe’s rail innovation strategy highlights automation and advanced control systems as critical elements for the future. The NEXUS project is addressing this by advancing fully automated train control systems, such as CBTC (Communication-Based Train Control) and ATO (Automatic Train Operation). These technologies ensure safer, smoother, and more efficient metro operations while aligning with the European goal of interoperable and standardized rail networks.

The General Assembly also underlined the importance of harmonization across systems to support the Single European Railway Area (SERA). NEXUS contributes to this goal by prioritizing interoperability and ensuring its solutions can integrate with broader transport networks, fostering consistency and cooperation across European rail systems.

Putting People at the Center

Another recurring theme at the Assembly was the need to address societal and cultural shifts in transport. NEXUS shares this user-centric vision by focusing on accessibility and inclusivity in metro systems. By analyzing passenger behavior and preferences, NEXUS aims to create solutions that meet the needs of diverse demographics, ensuring metro networks are not only efficient but also equitable and user-friendly.

Our Contribution to European Goals

The ERJU General Assembly provided a timely reminder that rail innovation must be both ambitious and practical, delivering measurable benefits for operators and passengers alike. NEXUS reflects this approach by combining cutting-edge technology with actionable strategies to optimize metro systems. From reducing energy footprints to enhancing passenger flow and safety, NEXUS’s innovations align with Europe’s broader efforts to create a sustainable, resilient, and future-ready rail network.

By addressing current challenges in urban transport while contributing to the vision of a unified European rail system, NEXUS ensures its work supports the long-term goals of efficiency, sustainability, and inclusivity across Europe’s metro networks.

NEXUS Project kicks off in Genoa

The European-funded NEXUS project held its kick-off meeting on October 15th in Genoa. The project seeks to establish an innovation benchmark and redefine metro transportation across Europe.

Coordinated by STAM SRL, the project envisions a future where technology enhances operations responsibly and sustainably and weaves a narrative where metros become living, adaptable entities.

With a vision to create next-generation adaptive and automated metro operations, NEXUS will pilot its innovative approaches in two major European cities: Genoa and Sofia over the next 24 months. This Horizon Europe initiative aims to enhance metro adaptability, prioritise inclusivity, and foster sustainable practices in line with the European Commission’s objectives for future urban transport systems. During the kick-off event, the consortium partners had the opportunity to experience the Genoa metro system first hand and visit the control room.

The NEXUS project strives to address real-world challenges faced by metro systems, including ageing infrastructure, outdated control systems, and fluctuating passenger demand.  At its core, the project aims to advance state-of-the-art metro systems by developing and deploying a range of new technologies and methodologies, thereby optimising operations and enhancing the passenger experience.

NEXUS will introduce several innovative approaches to metro operations, including:

  • Adaptability and Automation: The project redefines metro adaptability by shifting away from traditional planning frameworks and enabling real-time responses to passenger demand fluctuations. This dynamic approach will be coupled with the development of fully automated train control systems, leveraging Communication-Based Train Control (CBTC) and Automatic Train Operation (ATO) to enhance safety and operational efficiency.
  • AI and Data Science Integration: By integrating AI and data science into metro operations, NEXUS aims to introduce predictive maintenance, dynamic energy optimisation, and advanced cybersecurity measures. This approach will help ensure cost-effectiveness, sustainability, and resilience against potential threats.
  • User-Centric Design: NEXUS will prioritise the passenger experience, analysing behaviour, preferences, and journey conditions to optimize metro services for diverse user demographics. This user-centric focus will improve overall satisfaction and accessibility.
  • Technology Impact Analysis: A comprehensive analysis of the social, environmental, and technological impacts of new implementations will be conducted to ensure responsible and sustainable technology integration, setting a new benchmark for metro systems worldwide.
  • Alignment with EU-Rail System Pillar: NEXUS supports the EU-Rail Joint Undertaking by contributing to the development of a common architecture for the European rail network. This focus on interoperability and open interfaces will help create a more unified and efficient rail system across Europe.

By fostering collaboration among metro operators, passenger representatives, and industry experts, NEXUS will deliver valuable insights and guidelines that support the future development of metro systems across Europe. As NEXUS advances over the next two years, it promises to set new standards in metro operations, ensuring that the journey is as significant as the destination.

“AI presents both opportunities and challenges, but tackling them is key to shaping the future of European metro systems. In this way we can create smarter, more adaptable transport that meets the evolving needs of both cities and passengers,” says Project Coordinator Pietro de Vito.