Professional profile and more…


Most of the things I've done took place in the context of my employment at the German Aerospace Center (DLR). You may find very brief summaries and possibilities to get in touch with me via social network portals below.

Professional Work

Work at the Institute of Transportation Systems (2001–2015)

Between 2001 and 2015, I worked as a scientific engineer at the Institute of Transportation Sytems at the German Aerospace Center (DLR).

My major topic was the contribution to the open source microscopic traffic flow simulation SUMO. In this context, I have not only designed and implemented many of this software's functionality, but as well used it in many different projects, addressing different kinds of questions. Among the topics, you may find:

I have stopped to work on SUMO as soon as I left the Institute of Transportation Systems. If you have any questions or need support, please used the usual SUMO contact channels.

You may nonetheless find some blog articles about SUMO at these pages.

Work at the Institute of Transportation Research (2015-)

At some point, I decided to change. I stayed at the DLR but moved to another institute, the Institute of Transport Research.

At the institute, we try to deliver ideas, evaluations, and advices on how to implement an environment friendly, sustainable, and inclusive mobility. My original task was to support the development of the agent-based demand model TAPAS. But relatively fast, I had to take over organisational tasks, being group leader, first, then the leader of a department of about 25 scientists between 2018 and 2021. It was definitely a fascinating job.

I still try to develop software, yielding in products as the “Urban Mobility Accessibility Computer” (UrMoAC), which is available as open source.

Other Scientific Resources

Social Networks

You may find me at the following social media pages:

Please note that I only accept invitations from people I know.


Occasionally, I review papers for:

Personal Interests

Besides my professional work, I am interested in other topics, and address them in a semi-scientific way, e.g.:

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