The description says it’s Thailand, and the comments seem to acknowledge that not only is it true that such a space exists in Bangkok, but also the locals seem to have already adopted it in their everyday life and culture. A culture that emerges over time, and people adapting. That’s life, that’s evolution. That’s adaptation. Emergent Urban Culture.
Nevertheless, in the urban design realm, we generally consider train lines, highways, rivers, etc. as separators. They cut and divide the urban fabric, creating precincts and sub-dividing land.
This video clearly demonstrates how a marketplace (defined as social-space, meeting-place, commercial-space, community-space) can adapt to its surroundings and exist over the tracks, like the layering of different cloths over the same spot.
Dutch designers pride themselves with the ability to design things/spaces with multiple functions. I suppose this goes for other land-constraint countries as well; Japan and Singapore, where land is scarce, and permanence is rare. Everything needs to have a second function to survive. And everything must work like clockwork. The mentality of its dwellers change to quick-adapting, fast-moving and make-doing lifestyles.