[OSM-newbies] no Vehicles Except for Access

[Bunny]

When out driving, I came a across sign saying 'No Vehicles Except for Access'
at enterance to a road off Whitehall Road on outskirts of Edinburgh, Scotland, 
It is leads South to a farm house and then acording to map then West to rejoin 
Millerhill Road)

http://osm.org/go/evfg5HYZ8--?layers=Q

I have read
https://wiki.openstreetmap.org/wiki/Access
but still unsure

should it be access=delivery ?

I assume that was intend for shorter roads.
and with this road  I usggest access could also be allow for other access uses 
other than delivery such as to map road (?)

or should I use a gate like a virtual gate?

regards,

Micah
user:%20Bunny


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