umm with the examples given, what would be the difference between street, urban landscape, and social landscape?
Landscape photographs that reflect social conditions. The landscapes that people inhabit have some effect on their society, and their society also affects the landscape. That relationship is what it's about, I think.
I would think, if going with Lange, you'd pick something from her documenting the Japanese interment camps
"Residents of Japanese Ancestry awaiting the bus..." 1942
And ask yourself, what is the difference between social landscapes, the social landscape, social documentary, and social criticism.
In the segregated community in which I live people in up at welfare/food shelf the same way that people desperately line up at Starbucks. It is interesting to see how the two groups of people interact in different spaces but end up behaving the same.
Check this guy's work.