[OSM-talk] Barrier=block areas

Warin 61sundowner at gmail.com
Thu Aug 16 21:51:46 UTC 2018


If the thought is to map a group of blocks as an area .. then my vote is 
no at least without more information.
It raises the question as to what the level of obstruction is - are 
motorcycles bared by this barrier? Horses? How badly are pedestrians 
impeded? What about people in wheelchairs?
So there needs to be a scale of impediment.

On 17/08/18 02:57, Tomasz Wójcik wrote:
> An use case for allow mapping barrier=block as asreas is a better 
> visualisation of a landcoverage. Mapping aeral objects as a nodes 
> makes the map a little bit lied.
>
> ------ Wiadomość oryginalna ------
> Od: "Philip Barnes" <phil at trigpoint.me.uk <mailto:phil at trigpoint.me.uk>>
> Do: talk at openstreetmap.org <mailto:talk at openstreetmap.org>; "David 
> Fox" <davefoxfac63 at btinternet.com 
> <mailto:davefoxfac63 at btinternet.com>>; "Tomasz Wójcik" <tomox3 at wp.pl 
> <mailto:tomox3 at wp.pl>>
> Data: 16.08.2018 10:05:11
> Temat: Re: [OSM-talk] Barrier=block areas
>
>> Hedges can certainly be areas, some can be a few metres thick.
>>
>> A common mapping scenario is a thick hedge and a stile at each side. 
>> The only way to represent this is to map as an area and map the 
>> stiles as nodes connected to the outline.
>>
>> Phil (trigpoint)
>>
>> On 16 August 2018 01:14:49 BST, David Fox 
>> <davefoxfac63 at btinternet.com <mailto:davefoxfac63 at btinternet.com>> 
>> wrote:
>>
>>     Barriers, by definition, provide some level of restriction.
>>     Without attaching them in some form it becomes hard for routers
>>     to account for them.
>>     Hedges and walls are linear in nature, not an area.
>>
>>
>>
>>     On 15 August 2018, at 19:51, Tomasz Wójcik <tomox3 at wp.pl
>>     <mailto:tomox3 at wp.pl>> wrote:
>>
>>
>>     Currently, barrier=block is not allowed to be mapped as an area.
>>     As blocks can be big enough to map them as areas, I think it
>>     should be allowed, the same as in barrier=wall or barrier=hedge.
>>     Anyway, currently we have 3,9k of barrier=block areas in database.
>>
>>     https://wiki.openstreetmap.org/wiki/Tag%3Abarrier%3Dblock
>>
>>     Block examples:
>>     http://www.concrete-barriers-blocks.co.uk/up/concrete-barrier-type-m-block-photo.gif
>>     http://cdn1.codziennypoznan.pl/201606241325/pub/img/full/71/1c58d-a9.jpg
>>
>>     Barriers with mapping as area allowed
>>     https://wiki.openstreetmap.org/wiki/Tag:barrier=wall
>>     https://wiki.openstreetmap.org/wiki/Tag%3Abarrier%3Dhedge
>>
>>
>> -- 
>> Sent from my Android device with K-9 Mail. Please excuse my brevity.
>
>
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