[Accessibility] wheelchair=yes/no vs. public_transport=stop_position/platform

[Peter Wendorff]

Am 03.10.2011 21:19, schrieb Michael Forster:
> Hi Peter,
>
> 2011/10/3 Peter Wendorff<wendorff at uni-paderborn.de>:
>> It's good you think about it, but I fear, it's hard to give a good answer to
>> that question.
>>
>> In my opinion the platform has a wheelchair accessibility itself, that
>> describes the accessibility by wheelchair from the street/city to the
>> platform,
>> but at the connection between platform and train the wheelchair
>> accessibility cannot be defined by the platform usually.
>>
>> There are platforms/stations, where stopping vehicles (e.g. trains) don't
>> have an equal entrance height. Some may have steps to reach the entrance,
>> most modern ones are designed to not need them.
> Wouldn't that be tagged on the route (and the platform) then?
Well... If you are sure that all vehicles have the same (or similar) 
entrance height...
Again: sometimes that's the case, sometimes not.
e.g. here in Paderborn (Germany) busses usually have ramps for 
wheelchair users, but during school holidays the bus companies use to 
send the majority of their busses to maintenance, so old busses without 
ramps may be used.

If it's not stable per route because of changing vehicles (some are 
accessible, others are not), even taggin on route and platform does not 
describe the reality.

And: How do you want to tag something on "route and platform"? as a 
special relation containing route and platform? Think about: we don't 
have member-tags in osm relations (at least not yet).

regards
Peter