this post was submitted on 15 Oct 2024
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So a concrete sidewalk would mean the entire sidewalk was poured in one piece? No moulding or anything?
@pineapplelover @openstreetmap
They would usually be poured in one or two slabs with the joints added to the wet concrete or cut later.
If it looks like an impossible mould would me needed it's more likely to be pre-fab and lifted into place later.
This thread says concrete means the entire thing was poured in one piece, no lines
https://help.openstreetmap.org/questions/85524/concrete-vs-concreteplates
@pineapplelover @openstreetmap
That thread has a top answer with a grand total of one vote on it, I wouldn't take it as consensus on anything.
Concrete that is poured in one piece usually has visible lines. They're placed there after the fact or when the concrete is wet to control how it cracks as it settles. That doesn't mean it's separate plates. The cuts normally aren't full depth.
The wiki seems to have good information also
https://wiki.openstreetmap.org/wiki/Key:surface