[Trigger warning: includes an explicit image of homeless person who froze to death.]
Some cities go to great lenghts to prevent homeless people from sleeping in places officials deem inappropriate. One way is architecture. A thread of examples, some of which you might have encountered without even realising what their design is all about. See it now. Counter example: How Helsinki got homeless people off the streets.

From Weekly Filet #283, in January 2020.