I’ve found two situations where the usual “traffic_calming=table” does not fully work:
Junction on top of table, but the side street does not have a “bump down”. I suppose that I could individually tag each of the two bumps (up/down), but how?
“Bump up” when entering a side street, but there is no bump down later on. I suppose that the solution for the first situation could be carried over.
“traffic_calming=bump” appears to be wrong. Taginfo shows a few instances of “traffic_calming=ramp”. Would that be correct?
I’ve found instances where a mapper tried to tag a half table by combining “traffic_calming=table” with a “direction=forward” tag. In my opinion, this would represent a table that only covers half of the street - which is not one of the situations I have described above.
If “traffic_calming=ramp” is used, it should probably be combined with “incline=up/down” as already used for stairs.