A few days ago I contacted the DB AG (German railway) with regards to my study; asking them for permission to do my observations, take photographs and record video. I sent them an e-mail expecting to wait a while for a response and having to re-adress somebody else in the DB hierarchy… However, next morning somebody tried to call me via phone and after being unsuccessful sent me an e-mail asking me to get back to him the following day. I did, and it was a brief and professional question answer interaction with the result that I will get written permission for all the things that I wanted to do for all the respective stations I want to look at. I am even allowed to make recordings in the ticket sale areas (these are owned/managed by DB Reise&Touristik, the stations belong to Station&Service. Thank you Deutsche Bahn. This was very helpful for me. Now the real work can begin!