The main objective of CARBON DIET is to implement and test the concept of individual mobility accounts for business trips and commuting.

The project is funded by the Federal Ministry for Climate Protection as part of the RTI programme Mobility of the Future and is managed by the Austrian Research Promotion Agency.

  1. implement and test the concept of individual mobility accounts in order to achieve reduction targets
  2. quantify CO2 savings successes & set concrete savings targets
  3. provide an app for CO2 assessment of journeys made & for planning future journeys
  4. implementation of a multidimensional research concept for real application test case

Investigation of the effect of the implemented variants of mobility accounts on


  1. the assessment of decision consequences,
  2. changes in behaviour and attitudes,
  3. the acceptance of climate protection measures as well as
  4. the associated motives and motivators.


Austrian Institute of Technology

The AIT Austrian Institute of Technology is Austria’s largest non-university research institution and is a specialist in the key infrastructure issues of the future. Against the backdrop of climate change and urbanisation, the „Digital Resilient Cities“ business area at the AIT Energy Center develops integrated concepts and long-term strategies for sustainable solutions for cities and regions. With its comprehensive know-how, the AIT offers decision-makers in administration and industry scientifically sound foundations for the realisation of sustainable urban developments.
CARBON DIET builds on the predecessor project mobalance, which explored the potential and framework conditions of individual mobility accounts in advance and was carried out under the leadership of the AIT. The AIT is also coordinating CARBON DIET and is also contributing technological know-how and behaviour-specific research expertise to the project.

yverkehrsplanung GmbH, as an innovative mobility research & transport planning company, is responsible for the specification and evaluation of the test cases in the project.
In accordance with the company’s know-how, the conception and practical testing of mobility accounts and CO2 budgets are central fields of work in this project.


Upstream Mobility
Founded in 2016 on the basis of the SMILE research project, Upstream Mobility is an IT service provider that serves the expansion and management of its own digital infrastructure and is the point of contact for connected urban transport. The company is owned by Wiener Stadtwerke and Wiener Linien. With its headquarters in 1030 Vienna, Upstream Mobility currently employs around 70 people.
With the vision of ensuring equal mobility for everyone, Upstream Mobility provides the digital infrastructure for social, fair and non-discriminatory travel for all – regardless of age, income or place of residence. As a publicly owned company, people and their need for mobility are always at the centre of all activities. Upstream Mobility is active both nationally and internationally with regard to digitally networked services in mobility issues and the operation of a digital, municipal mobility platform.
In this project, Upstream Mobility is responsible for the development of a mobility platform as well as a multimodal app that can be used to compare and plan alternative routes based on transport mode and route choice.
University for Continuing Education Krems
The Centre for Applied Game Studies at Danube University Krems is dedicated to the complex relationship between games and society in research and teaching. The focus is on combining expertise in games, media studies and technology.
In the project, the Centre for Applied Game Studies takes over the implementation of the game-based framework and is also responsible for the blockchain connection.
TU Graz
As a member of the Alliance of Sustainable Universities Austria and with the goal of climate neutrality by 2030, the reduction of greenhouse gas emissions in the area of university mobility as well as in general is a major concern for TU Graz.
With its expertise in environmental management at universities, Graz University of Technology is leading the test case on business travel in this project.


The project is divided into three phases:

    1. target definition with the users from the test cases and consolidation of existing research results and technologies into a test platform with a mobile app.
    2. long-term test case studies (1 year) with three survey waves (introduction/habituation/routine phase) and accompanying evaluation in 4 different application contexts.
    3. preparation of results incl. impact analysis, possible requirement profiles for further implementation areas, business and operator models.

The figure shows the logical linking of solution components contributed by the project partners with concrete test applications in which it is demonstrated which effect mobility costs can achieve under which conditions. This creates the basis for the development of targeted solution variants of mobility accounts for different user groups with corresponding requirements.

The gamification framework aims to incentivise sustainable commuting to work and the use of environmentally friendly modes of transport for commuting and business trips.

The applied energy-efficient blockchain Ardor (Childchain Ignis) enables the gamification framework to be secured and the CO2 certificate trade to be handled transparently.

Play the Carbon Diet Quiz now! (Still prototype and German only - new quiz questions will follow)

Stimmt es, dass…

Mit den Worten von Jonathan Frakes:

Wir leben in einer Welt, in der Traum und Wirklichkeit nah bei einander liegen, in der Tatsachen oft wie Fantasiegebilde erscheinen, die wir uns nicht erklären können. Können Sie Wahrheit und Lüge unterscheiden? Dazu müssen Sie über Ihr Denken hinausgehen und Ihren Geist dem Unglaublichen öffnen.


DI Dr. Alexandra Millonig.
Phone: +43 50550 6672


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Center for Applied Game Studies

University for Continuing Education Krems  

Dr. Karl Dorrek Straße 30

3500 Krems

Represented by:

Mag. Natalie Denk, MA

Phone: +43 2732 893-2362

Project Lead:

Mag. Thomas Wernbacher, MA, MSc

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Data Protection

Contact person for enquiries regarding project content: Alexandra Millonig ( )

Data Protection Officer (MMaga Katharina Ranjan) is the data protection officer of the personal data processed within the framework of this website. The University of Continuing Education Krems (Karl-Dorrek-Strasse 30, 3500 Krems, Tel.: 02732 893-0, E-Mail:

The IP address of the user together with data on the time of the request, the destination of the request, the amount of data transferred, a message whether the request was successful, the browser used, the operating system used, as well as the website from which the access was made (if the access was made via a link). This data is used exclusively to ensure system security and is processed by World4You (hosting provider). The server logs are stored for 2 weeks. The legal basis is Art. 6 para. 1 lit f DSGVO (legitimate interest) and TKG § 96 para. 3.

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If you contact us via the contact data published on the website (e-mail address or similar), the personal data you provide will be processed for the purpose of processing the enquiry and for follow-up questions. The legal basis for this is our legitimate interest pursuant to Art. 6 para. 1 lit f DSGVO.

To exercise your rights to information, correction, deletion, restriction of processing or objection to the processing of your personal data, please contact the contact person named above or, on a subsidiary basis, the data protection officer.

For any complaints, please contact the Austrian data protection authority (


Data protection information in connection with the app and the research design:

Gamification Framework

The data basis for the Trophy Wall as well as the Challenge comes from the CARBON DIET App. The data is used on an aggregated level and no personal data is processed.

An insight into the data basis for the metrics in relation to the realised Gamification Framework is possible under the attached link:

For questions regarding the applied metrics for gamification, please contact:

Blockchain Framework

The platform NFT Magic ( as well as the blockchain Ardor and its childchain Ignis are used in CARBON DIET for the generation of Non-Fungible Tokens (NFTs). This allows the badges from the gamification framework to be mapped and awarded. No user-bound wallets are created.

The privacy policy for NFT Magic can be found here:

The badges are created on an aggregated level and controlled via two main accounts: one for the University of Continuing Education Krems and one for the Vienna Networks.


For the accompanying research, a three-stage survey will be created using the tool „Survey Monkey“ and sent out to the participants of the field test. The data protection agreement can be found under the following link:

The responses are collected anonymously, there is no tracking of IP addresses. After the data has been analysed, the raw data is deleted. To merge the data sets, a matching ID is used that is generated on the app side. To merge the datasets, an anonymized matching ID is used, which is generated on the app side. The item list can be viewed here:

For questions about the questionnaire study, please contact:


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