[Talk-GB] barrier=kerb on highways may be blocking OSRM (Car) routing

[Mateusz Konieczny]

It sounds like traffic_calming=table
(not 100% sure).

18 Dec 2019, 17:20 by talk-gb at openstreetmap.org:

> Returning to the original issue, I think I've worked out what the problem is. It's that on a crossing node, kerb=* is fine (it describes the presence/attributes of the kerb on the subsidiary highway) but barrier=kerb should *not* be used. 
>
> Combining kerb=* with highway=crossing is blessed by Wiki:
>
>
>>  If the kerb is identical on both sides of a crossing, it is possible to add the >> kerb <>>> =*>>  tag to the >> highway <https://wiki.openstreetmap.org/wiki/Key:highway>>> =>> crossing <https://wiki.openstreetmap.org/wiki/Tag:highway%3Dcrossing>>>  node, which sacrifices accuracy for simplicity, consider using kerb:left and kerb:right if the kerbs differ.>>   
>>
>
> but this doesn't say that barrier=kerb should be included on the crossing node! 
>
> I think barrier=kerb + highway=crossing should be regarded as a mistake. Taginfo shows ~ 1000 of them (0.47 of barrier=kerb nodes; 0.03% of highway=crossing nodes) which should fixable.
>
> On Wed, Dec 18, 2019 at 3:37 PM Philip Barnes <> phil at trigpoint.me.uk> > wrote:
>
>> On Wednesday, 18 December 2019, David Woolley wrote:
>>  > On 18/12/2019 13:31, Edward Catmur via Talk-GB wrote:
>>  > > That said, the same goes for cars - other than the lowest bodied sports 
>>  > > cars, pretty much all motor vehicles are capable of taking a kerb at low 
>>  > > speed.
>>  > 
>>  > Although raised kerbs are generally there to stop that happening and the 
>>  > resultant trespass on the footway can be illegal, e.g. in London.  As 
>>  > such routers should not be routing motor vehicles over kerbs.
>>  
>>  Its a level of detail that few of us have mapped, but it is perfectly acceptable, and quite common, to route motor vehicles  over lowered kerbs to access private property. 
>>  
>>  Phil (trigpoint)
>>  
>>  
>>  
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