The description of movement is left very up in the air... Just need a clarification yep it's very free form like that. Movement is (at least in the game i played) rarely an issue. Between the long winding paths and the Metro most of the time blockage isn't your issue.
Am I right to assume it means you can move any bloc/mob to literally any other district you can trace a clear path to?
Including turns, curves, and metro shortcuts