[Tagging] What does bicycle=no on a node means?

OSM osm at bavarianmallet.de
Tue Oct 13 12:03:44 UTC 2020


Am 10.10.2020 um 20:16 schrieb Emvee:
>
>>> Basic question I think, for a bicycle router bicycle=no on a node
>>> means it should "avoid" crossing the node likely by adding a moderate
>>> penalty as the cyclist could make the choice to dismount passing the
>>> node. I know at least on bicycle router implementing it this way, see
>>> https://github.com/abrensch/brouter/issues/265
>> Really just by bicycle=no on a node?
>> It does not check for barrier=* first?
>> I think that would be a bad idea.
>
> The check is just on bicycle=, see the end of
> https://github.com/abrensch/brouter/blob/master/misc/profiles2/trekking.brf 
>
>
> In the bouter github issue everybody (incl. the developer, but excluding
> Mateusz) do expect bicycle=no on a node to mean bicyle=no in node 
> context.
>
>>> Question now is if this rule should be applied differently if it is
>>> used in combination with highway=crossing.
>> At least I think so.
>>> The recent "meaning of highway=crossing + bicycle=no" thread makes
>>> the case that it means "you cannot use this crossing to cross road
>>> while cycling, it does not affect legality of cycling on the road"
>> I think so. The main tag ist highway=crossing.
>
> I see nothing like this mentioned on
> https://wiki.openstreetmap.org/wiki/Key:access.
>
> Do you know any other combination a tag with an access tag on a node
> that means something else depending on from which way you enter it and
> leave it?
>
> I think you suggest ("It does not check for barrier=* first?") to have a
> bicycle router ignore bicycle=* on nodes except in combination with
> barrier=*. That would mean one could just remove bicycle=* as it is
> largely useless, see my response on "other data consumers" elsewhere in
> this thread.
>
>> I see this as common practice (for whom this crossing is meant).
>
> An educated guess is that there are 3000 crossings mapped incorrectly
> with bicycle=no of the 4.5 million crossings mapped, that is 0.07%. Much
> less of a problem than other problems.
>
>>> by giving the right access rights on the ways connecting to the node
>>> all possible access scenarios can be covered.
>> That can be a solution for crossings.
>
> It is a "solution" that makes bicycle=no on highway is crossing 
> unnecessary.
>

How to solve the issue with a single crossing node at highway=<street> 
without a crossing highway=<anything_but_street> because of "sideway 
tagging by tags on highway" mapping?

Sorry:
Why does my email program send the saving draft while I am still writing 
... does matter only to osm lists ... without asking for the outgoing 
password - heaven!

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