[Accessibility] Wheelchair toilets and Eurokey

[Thomas Ineichen]

Hi,

I  started  mapping  the toilets in my hometown for accessibility with
wheelchairs. There are mostly (~75%) two models[1]:

Type VA:
can be used by everyone, costs 1 Swiss Franc or is free with a Eurokey

My tags:
amenity=toilets
unisex=yes
wheelchair=yes
centralkey=eurokey
fee=1 CHF
fee:centralkey=no


Type BF/MF:
Two separate toilets: wheelchair: 1 CHF or Eurokey
                      'normal'    free

My tags:

node (a)
amenity=toilets
unisex=yes
fee=no

node (b)
amenity=toilets
wheelchair=yes
centralkey=eurokey
fee=1 CHF
fee:centralkey=no



My questions:

- On  the Wiki it says: "The tag centralkey=* is used, if a toilet (or
  similar)  can  be  opened by a central key only, that is distributed
  only to a limited group of persons."[2]

  I  know  eurokey-only  toilets  mainly  from  inside buildings (e.g.
  University,  supermarket).  Is  it  ok  to  tag  'my'  toilets  with
  centralkey=eurokey, too and change the Wiki (i.e. delete 'only')?


- All eurokey-amenities I know are free of charge but as far as I know
  it's  not  mandatory  (thus the additional key "fee:centralkey"). Do
  you  know toilets etc. that cost when using a Eurokey? Or is there a
  rule about cost-free access?


Thanks for your help,
Thomas


[1] Masterplan ZüriWC (PDF, German):
    http://www.stadt-zuerich.ch/content/dam/stzh/hbd/Deutsch/Immobilienbewirtschaftung/Weitere%20Dokumente/Zbgg/masterplan_zueriwc_kl.pdf

[2] http://wiki.openstreetmap.org/wiki/Key:centralkey