The "Train Street," located in the core area of Beijing's 798·751 Park, originally served as the coal yard and railway terminus for the 751 Factory. It was later repurposed into an underground garage, and after a dozen decommissioned train carriages were placed along the tracks on both sides of the garage's rooftop plaza, the site was opened to the public. However, the space subsequently suffered from a loss of vitality. Studio NOR utilized a lightweight, modular micro-renovation strategy, succe