[Tagging] How to tag the width of a gate

Mike Valiant mike_valiant at hotmail.com
Sun Feb 26 12:53:37 GMT 2012

IMHO a physical restriction is as important as a legal restriction. If I have a  wide vehicle and I was using routing software using the OSM database it would be useful to be able to put in my vehicle's width and then the routing software could parse for maxwidth as a restriction along the route. There are many places, such as the width of a gate, which would prevent a vehicle using a road where there is no legal restriction.
I think you have just made the tag less useful.

> Date: Sun, 26 Feb 2012 13:42:12 +0100
> From: dieterdreist at gmail.com
> To: tagging at openstreetmap.org
> Subject: Re: [Tagging] How to tag the width of a gate
> Am 26. Februar 2012 13:17 schrieb Mike Valiant <mike_valiant at hotmail.com>:
> > That not what the wiki for maxwidth says: " a width limit for using the way"
> >  - no mention of whether it is a legal restriction or not. And in the
> > discussion of maxwidth "width restriction can be physical, or purely legal"
> the wiki is not always easy to read, but you can get the clue if you
> look at several pages:
> http://wiki.openstreetmap.org/wiki/Key:width links to maxwidth with
> this text: "width restriction for vehicles on a road"
> http://wiki.openstreetmap.org/wiki/Key:maxwidth has a big sign on the
> right (legal restriction) and links to access for "other
> restrictions", where the first sentence is: "Access values are used to
> describe the legal access for highway=*s and other facilities..."
> The discussion page of maxwidth that you mention links to maxheight
> discussion. On maxheight discussion it gets pointed out that maxheight
> is a legal restriction and that a proposal for physical maxheight is
> to be found here:
> http://wiki.openstreetmap.org/wiki/Proposed_features/clearance
> this page shows that there was no support for maxheight:legal (because
> maxheight is already legal) but there was support for
> maxheight:physical
> FYI: I added the word "legal" to maxwidth now, so in the future there
> will be less confusion.
> cheers,
> Martin
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