General layout vertical design
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Regarding the vertical markings for Workshop 4#, the floor level inside the workshop is 13.60 m, the outdoor floor level is 13.40 m, and the elevation at the nearest road intersection is 13.35 m. Is there any problem with this design? How should the appropriate height difference between the outdoor elevation of a normal building and the road elevation be determined? Are there any specific standard requirements you have in mind?
I don’t understand; the last two images didn’t load. Thinking about it this way, outside the room there is a layer of cement that raises the level above the road surface, with curbs as well; inside the room, the level is even higher. Isn’t that quite common? It’s not easy for rainwater to flow back up from the road surface.
The height difference between indoor and outdoor areas is generally 150–300 mm; the vertical markings shown in the diagram are not a big issue