User Experience usually refers to human-computer interaction, but the underlying concepts and research methods are relevant to many other fields, particularly the built environment (architecture, landscape architecture, and city planning). However, it isn't appropriate to refer to a person in this context as a "user."
Even though people can use space, they also co-create the experience of that space with other people, i.e., their actions affect other people's experiences and behaviors. Therefore, people who study and design elements of the built environment (e.g. buildings, parks, streets) explore methods to enhance the user's experience (e.g. accessibility, wayfinding) and also methods that encourage or mitigate the behaviors of others.
Is there another term for this kind of focus?
"Experience Design" seems a likely candidate that even encompasses UX. (I imagine it could become a separate StackExchange community).