Eruvim

An eruv (plural eruvim) is a Jewish religious boundaries for allowing activities that are normally prohibited on Shabbat. Recently, eruvim have been appearing in many places around the world. Most notably in New York, but also in other places such as North London. Mapping eruvim is slightly confusing due to the lack of information on how, and the relevant tags to use. However, not much custom tagging is needed.

boundary=eruv was used

Examples: https://www.openstreetmap.org/way/62202868 https://www.openstreetmap.org/way/62202915 (found with https://www.openstreetmap.org/search?query=Eruv )

See https://lists.openstreetmap.org/pipermail/tagging/2022-August/065201.html discussion whether Eruvs are mappable