Dear Tobi
thank you for your message.
I think that in Chapter 23. “Modifying Access, Barriers, and Opportunities » and particularly in Section 5. “Increasing Access for People with Physical Disabilities” on the page /en/table-of-contents/implement/access-barriers-opportunities/increase-access-disabilities/tools you may find some useful ideas for breaking the barriers! there are examples, tools, and a summarizing PowerPoint
Many wishes for your work!