Unable to answer "What’s the height of this curb?" – Curb – https://osm.org/node/10948398251 via StreetComplete 58.2:

There seems to be an issue with this paths layout. Also: have fun with mapping the signs. ^^

Attached photo(s):
https://westnordost.de/p/226643.jpg
https://westnordost.de/p/226644.jpg
https://westnordost.de/p/226645.jpg