For the AMS (Amsterdam Institute for Advanced Metropolitan Solutions) Mathias set up and guided an interdiscplinary research on the combination of working and dwelling in the city. During a couple of months in 2022 students from Delft University of Technology and Wageningen University studied the Zaandam Kleurenbuurt and came up with spatial, social and organisatorical solutions for this post-war city centre boundaring neighbourhood. The final presentation took place on June 30 and was an interactive event with many more disciplines listening in located on the former marine area in Amsterdam.