[Tagging] access=disabled

[Warin]

Hi,

I'm tagging a 'disabled parking area' - these are fairly common in my 
country.

There appears to be no documented way to tag these.

I think the present practice is to use the 'access' tag, things like customers, delivery, forestry all specify a restricted access.

There are some 400 uses of access=disabled according to tag info.

Thought on any other methods?

Failing any 'good alternatives' I'll document its usage.