Fluid
Human-System Interaction

Symposium

June 4-5, 2025

A multi-disciplinary human-centric approach to meet modern road-user-needs and facilitate a trustworthy development of integrated human-technology systems for future mobility

What is Fluid Interaction Concept?

Fluid is a powerful metaphor that describes interaction concepts of next-gen human-machine interfaces that:

Let information “flow” across devices and medium
Wrap around and support the “immersed” body
Fill all the interaction gaps
Isolate and protect
Connect and share
Take the shape of the container

Fluid Interaction is:

Adaptive

based on monitored data from user, vehicle and road conditions

Simple and intuitive

reduced learning efforts

Lightweight on the user

avoiding cluttered communications

Natural

supporting multi-sensory interaction

Anywhere, anytime

running in the background, but prompt on demand

Topics

Fluid, collaborative human-system interaction concepts
Seamless interface adaptation to driver's state
Continuous integration of driver, vehicle, and road infrastructure data
Shared information with vulnerable road users to enable timely and safe joint actions in critical situations
Integration of internal and external vehicle interface for a shared understanding of intentions
European project HEIDI: Holistic and adaptivE Interface Design for human-technology Interactions (https://heidi-project.eu/)

Main Questions

Safety First

What KPI can measure the effectiveness of fluid interaction?

Standardization vs. Customization

Is there a conflict? How can fluid interaction concept enable both?

One-fits-all standard solutions vs. customized solutions

Fluid interaction concept as key enabler?

Dangerous HMIs

Have we gone too far? Is fluid the necessary step back in the transition from tech-centered to user-centric interface design?

Sustained interactions among road users

Are we there yet?

Do you have further questions? Doubts? Criticisms?

Please, let us know and we will be happy to bring them to our experts!

We will involve participants in the discussions throughout the whole event,

and together we will produce the answers!

Key Message

Fluid human-machine interactions

support driver's roles across automation levels

Multi-sensory displays

allow information to flow and adapt to user’s needs

Effective driver’s tutoring

on AD/ADAS is context-sensitive, step-by-step, personalized

Holistic integration

of internal and external HMI provides shared understanding of road situations by all stakeholders

Coordinated information

and joint action recommendation are the key to efficiency, comfort and safety

From internal to cooperative HMI

Initially, the features of fluid interaction are implemented and evaluated in internal HMI to fulfill driver’s needs and roles in automated vehicles.

Then, a fluid and collaborative architecture effectively gathers and synchronizes driver’s data and data from other road users to enable optimal joint action by all stakeholders via external HMI. In this way, all road users have the same understanding of the situation and cooperate for safe interactions between vehicles and e.g., pedestrians.

Fluid internal and external interfaces coordinate information and joint-action recommendations addressing all user categories, while adapting to their respective states and conditions like, e.g., distracted drivers and older pedestrians, to optimize efficiency, comfort and safety.

2024

Keynote Speakers

Peter Rössger

Founder & CEO at BEYOND HMI

Paul Schouten

UX Designer/Design Leader at TomTom

Eduardo Veas

TU Graz

Meng Lu

Principal, Aeolix ITS

Stand-Up Presentations

Jan Souman (TNO – Dutch Organisation for Applied Scientific Research):

AWARE2ALL: Safety solutions for the introduction of HAVs in traffic

Guglielmo Papagni (Austrian Institute of Technology):

PANACEA: Monitoring and assessment of driving ability

Javier Alonso Ruiz (University of Alcala):

HEIDI: Predicting road users’ intentions

Benedikt Gollan (Somareality GmbH)

Monitoring cognitive states from eye tracking

Interactive Workshops

Marko Gluhak (University of Ljubljana):

Assessing fitness to drive

Jan Souman (TNO – Dutch Organisation for Applied Scientific Research):

DCAS: implementation and implication

Guglielmo Papagni (Austrian Institute of Technology):

Communicating driving impairments to other road users

Isabella Hinterleitner, Diana Silvestru (TechMeetsLegal):

Mind the gap! Defining key features for a multi-modal, sustainable, gender-sensitive journey

Marcus Hennecke (Infineon Technologies Austria AG)

Cockpit of the Future

Further Informations

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Fluid Human-System Interaction