[OSM-talk] Key:smoothness

Mike Harris mikh43 at googlemail.com
Tue Feb 3 07:47:40 GMT 2009

I'd vote (whoops! - sorry - opinionate (:>)) for that - it has the advantage
of being non-hierarchical and thus deals with the sort of problem I
described (from real life) yesterday, i.e. where the smoothness of a way is
suitable for a bicycle (weaving between big potholes in a paved surface) and
yet not for a car - the opposite of the current (and certainly more usual)
'smoothness' hierarchy where a bicycle is more 'fussy' than a car. It also
deals with my quite common dilemma where - if I follow recommendations for
UK public right-of-way tagging - I might tag a way as a "byway open to all
traffic" or a "restricted byway", on both of which motorised vehicles are
banned in law but all other wheeled vehicles are allowed (including that
famous horse with wheels known as a horse-and-cart (:>)) - and yet the
physical nature of the way is such that even a bicycle would have to
struggle over stiles!

IMHO also think that the key 'suitability' is more self-explanatory to a
newcomer than 'smoothness'. TBH, when I first encountered 'smoothness', I
wasn't sure what was intended until I read the details and realised it was
about the suitability of the way for particular classes of vehicle rather
than a description per se of the surface.

Mike Harris

-----Original Message-----
From: Matthias Julius [mailto:lists at julius-net.net] 
Sent: 02 February 2009 16:23
To: talk at openstreetmap.org
Subject: Re: [OSM-talk] Key:smoothness

Dave Stubbs <osm.list at randomjunk.co.uk> writes:

> 2009/2/2 Richard Fairhurst <richard at systemed.net>:
>> Ulf Lamping wrote:
>>> Yes, if it would use descriptive terms it might solve some problems. 
>>> But if you think of a better solution it gets really difficult to 
>>> find better terms thats aimed towards something.
>> smoothness:vehicle would make sense to me. But, you know, water under 
>> the bridge and all that.
> suitability_wheeled_vehicle would be even better.

Suitability sounds a bit more fitting than smoothness.

And one could put the type of vehicle into the value like
'suitability=horse:good;mountainbike:bad;racebike:impossible' or something
like that.


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