[OSM-talk] [talk-au] maxheight/height

Maarten Deen mdeen at xs4all.nl
Tue Jul 28 07:35:12 BST 2009


Roy Wallace wrote:
> On Tue, Jul 28, 2009 at 4:17 PM, Maarten Deen<mdeen at xs4all.nl> wrote:
>> IMHO it is not that important if the way with the limit is only just beneath
>> the bridge, or is somewhat longer or is applied to nodes on either side of a
>> bridge.
>>
>> I recently came across this example where the way with the maxheight is a
>> lot
>> longer than strictly necessary. For every day uses this does not really pose
>> a
>> problem.
>> <http://www.openstreetmap.org/browse/way/25883025>
>
> So the solution is "do whatever you want?" Hrmm...
>
> A couple of potential problems with this: What if someone later adds a
> way that intersects the way with the restriction? The restriction must
> then be removed from the part of the way that is beyond the bridge -
> but this user should not be expected to know that the restriction even
> exists...
>
> Also, for longer sections, it becomes less clear that the maxheight
> restriction is in regard to the bridge (versus the law, power lines,
> trees, buildings, or something else). For ways with multiple bridges
> in close proximity, it may become unclear which bridge the restriction
> applies to. etc etc...
>
> It gets a bit sloppy...

You are right. It is better to stay close around the limiting object.

Regards,
Maarten





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