[Tagging] Mapping bicycle-only turn lanes

[Mateusz Konieczny]

Dec 12, 2020, 18:27 by baloo at ursamundi.org:

>
>
> On Sat, Dec 12, 2020 at 11:22 AM Jan Michel <> jan at mueschelsoft.de> > wrote:
>
>> On 12.12.20 17:47, Paul Johnson wrote:
>>  > On Sat, Dec 12, 2020 at 10:46 AM Jan Michel 
>>  > <>> jan at mueschelsoft.de>>  
>>  > <mailto:>> jan at mueschelsoft.de>> >> wrote:
>>  > 
>>  >     On 12.12.20 17:25, Paul Johnson wrote:
>>  > 
>>  >      > Sure, if you manually torque tag it to match the incorrect
>>  >      > documentation.  As soon as you open the lane editor, it rightly
>>  >     corrects
>>  >      > it to lanes=5, since you have 2 lanes in one way and 3 in the other.
>>  > 
>>  >     The "incorrect documentation" was voted on and it was approved.
>>  > 
>>  > 
>>  > I'm pretty sure it was done without consideration for reserved lanes as 
>>  > lane access tagging wasn't something yet available.  Now it is, and it's 
>>  > time to reconsider that.
>>  
>>  I'm refering to the proposal of exactly this: the :lanes extension. It 
>>  was clearly and unambiguously taken into account:
>>  >> https://wiki.openstreetmap.org/wiki/Proposed_features/lanes_General_Extension#The_issues_with_the_lanes_tag
>>
>
> That specific anchor says it's completely sidestepping the issue while highlighting the shortcoming of lanes=* as it stands now.  We need to fix lanes=* to mean all lanes.  This isn't a hard change to make
>
It would redefine widely used tag.

So we would need to resurcey all places where lanes tag is used.

And MapRoulette is not an answer in this case. It would only work if all 
11 millions tags would be in places where aerials is highly detailed, 
up to date and road is not covered by trees.

See https://taginfo.openstreetmap.org/keys/lanes

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