About Our Project

Waste management is not uniform across TUM. This shows in a varying availability of trash bins, which allow for sorting. While some offices are equipped with trash bins for paper and one mixed bin, there are several offices with mixed-purpose trash bins only. Similar observations can be drawn from public spaces. Campus buildings are mostly equipped with mixed-purpose bins, while multi-purpose bins are rare.

A lack of multi-purpose bins can also be observed at the WZW Campus in Freising. A new waste management strategy was implemented at WZW in the year 2019. New trash bins were supposed to allow for waste separation. So called “Müllinseln”, spots for centralized trash collection, were therefore installed across the campus. Public spaces and offices do still seem to lack possibilities for waste separation. Trash separation is therefore mainly possible at the “Müllinseln”.

The shortcomings in the availability of trash bins, which allow for separation of trash, has drawn the attention of TUMs Green Offices. Campaigns, which aim at improving waste separation, are planned for the year 2023.

Our Research Questions

There seems to be a large variability in the availability of trash bins, which allow for waste separation across TUM. Our first research question aims at the current status quo of waste separation at TUM.

  • To what degree is waste separated at different TUM campuses?

The first research question can be an indication for the demand for improved waste separation possibilities.

Interventions at various TUM campuses are planned to improve waste separation. Our second research question aims at different improvement strategies and their benefits.

  • Which measures should be introduced to improve waste separation?


The research questions are tackled via a quantitative survey. TUM students and employees of different campuses and research areas are surveyed. The survey follows the analytic hierarchy process (AHP) framework to reveal the relative preference for different benefits of a campaign on trash segregation. The compositional data is analysed by compositional data analysis. Regressions will be run to determine factors that explain the relative importance of different benefits.

Project Plan and Timeline

Expected Results

We expect trash separation to vary significantly across TUM. The overall availability of multi-purpose trash bins is expected to be low. Conclusions on how trash separation could be increased on an individual level will be drawn based on the relative importance of different benefits of waste separation campaigns.

Team Members

  • Aastha Chandiwala
  • Moritz Ptacek
  • Corinna Winkler


  • Rodrigo de Rojas
  • Veronika A. Bauer

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